Hi again,
You can only conclude your p100 latency of 154ms was inaccurate if within day's your VEP results were significantly different and in normal range for a male under 60 which 114ms is....
"The usual waveform is an initial negative peak (N1 or N75), followed by a large positive peak (P1 or P100), followed by another negative peak (N2 or N145). Maximum value for P100 is 115 msec in patients younger than 60 years; after this age, it rises to 120 msec in women and 125 msec in men. Even though published norms are available in the medical literature, each individual laboratory should have its own norms to control for laboratory-to-laboratory variations in technique."
https://emedicine.medscape.com/article/1137451-overview#a2
Your anxiety situation has been openly acknowledged by you in your posts, your Dr shopping behaviours should be like a neon sign bringing to your attention just how much your anxiety is driving you to continue to fear the worst and keep you desperately searching for proof of what you believe is wrong, despite your normal diagnostic evidence and extensive professional options and reassurances. For the record having a mental health issue does 'not' give anyone immunity from being dx'ed with any other medical condition, pwMS experience anxiety and depression too....please don't make a mistake and reject your health anxiety as being a significant factor in what your dealing with and seek professional help for this singular problem, MSer or not, anxiety and or depression will literally make everything feel worse than it truly is!
What compelled you to specifically get the VEP test anyway, you don't mention visual symptoms suggestive-consistent with Optic Neuritis, why that specific test?
Your focusing on MS but even IF you had been dx with Optic Neuritis (ON), not only are most cases of ON idiopathic but it's also associated with a lot of other conditions...
"What causes optic neuritis?
The cause of ON isn’t well understood. Most cases are idiopathic, which means they have no identifiable cause. The most common known cause is MS. In fact, ON is often the first symptom of MS. ON can also be due to infection or an inflammatory immune system response.
Nerve diseases that can cause ON include:
MS
neuromyelitis optica
Schilder’s disease (a chronic demyelinating condition that begins in childhood)
Infections that may cause ON include:
mumps
measles
tuberculosis
Lyme disease
viral encephalitis
sinusitis
meningitis
shingles
Other causes of ON include:
sarcoidosis, an illness that causes inflammation in various organs and tissues
Guillain-Barre syndrome, a disease in which your immune system attacks your nervous system
postvaccination reaction, an immune response following vaccinations
certain chemicals or drugs"
https://www.healthline.com/health/optic-neuritis#risk-factors
Cheers.....JJ
Thanks superman_ms!
Quick update:
I went for VEP test on 10 June at a certified lab and results were bad.
It says: severe demyelination of optic nerves. p100 latency is 154ms
I went to Neurologist A yesterday with results and he was terrified and told me these results are wrong.
He again ordered VEP(hospital in which he works).
He also ordered Brain MRI with contrast on 3T machine.
This time VEP shows p100 latency 114ms. He told me this is fine. (Isn't it should be less than 100 or may be less than 105?).
Brain MRI with contrast shows: Few non enhancing non restricting foci of T2 and FLAIR hyperintensities are seen predominantly in anterior deep white matter. Corpus callosum is normal.
Doctor said it is non specific.
I am not as stressed as others percieved!
Please advice!
Thanks superman_ms.
This symptom: Severe muscle weakness in my legs and fatigue all over the body is from day 22nd May till now.
Forgot to mention yesterday(I don't know how to edit the post). Sorry for that :(
Thank you so much for quick response @superman_ms.
Yesterday, I went to Neurologist A(My medicine doctor told me that he is good, anyways I went again).
He saw all of my reports and listened to my symptoms and was smiling and prescribed me anti-depressent and Benfomet Forte.
He even said that my spine MRI is fine. (How can it be fine)?
I am feeling severe muscle weakness in my legs and fatigue all over the body. :(
Regarding Hypothyroid, the latest reading last week for TSH: 1.4 and T3 and T4 are in limits(don't remember though).
Please help me!
Hi and welcome,
What you have mentioned isn't suggestive or consistent with neurological conditions like MS but you do have two issues that can cause neurological symptoms that may explain the issues you've experienced......1 is the health of your spine, which you may benefit seeing a physio therapist about and if you've been diagnosed with BPPV whether or not the Epley maneuver will help you. Also within your post you say you have Hashimoto's, thyroid conditions can cause some neurological symptoms and are commonly associated with other medical conditions.
"Hashimoto thyroiditis is the most common type of thyroiditis and the most common cause of hypothyroidism. For unknown reasons, the body turns against itself (an autoimmune reaction). The thyroid is invaded by white blood cells, and antibodies are created that attack the thyroid gland (antithyroid antibodies).
In about 50% of people with Hashimoto thyroiditis, the thyroid is underactive initially. In most of the rest, the thyroid is normal at first (although in a small number of people, the gland initially becomes overactive), after which it usually becomes underactive.
Some people with Hashimoto thyroiditis have other endocrine disorders, such as diabetes, an underactive adrenal gland, or underactive parathyroid glands, and other autoimmune disorders, such as pernicious anemia, rheumatoid arthritis, Sjögren syndrome, or systemic lupus erythematosus (lupus)."
https://www.msdmanuals.com/en-au/home/hormonal-and-metabolic-disorders/thyroid-gland-disorders/hashimoto-thyroiditis#v12757155
You also mention your blood test picked up your ESR is 28 which would likely to be on the high side for your age and gender (normal is 0 to 15 mm/h in men younger than 50) so whilst it doesn't point to any particular disease, infection, or type of inflammatory condition on it's own, it still might be worth asking your family physician if it could have a connection to what you're experiencing or your other medical issues ie spinal MRI, dx Hashimoto, dx BPPV
I hope that helps.......JJ
Sorry, Forgot to tell my age:
Age: 27 Male