I think actually anemia can explain my symptoms. I'll see after the treatment. I heard of similar cases (with no discoloration). Megaloblastic or Pernicious anemia (what I probably have, a gastroenterologist is going to check it) can make CNS disturbances. Or at least it can according to the source I read:
http://www.freemd.com/pernicious-anemia/symptoms.htm
http://www.freemd.com/megaloblastic-anemia/symptoms.htm
And yes, I meant the complement system. According to medline, decreased complement activity may be seen in infections, autoimmune, malnutrition and other stuffs:
http://www.nlm.nih.gov/medlineplus/ency/article/003539.htm
Can you explain a bit more about your Influenza A theory? Was that what you suffered from when you had these symptoms?
Also, you're from Italy right? Do you know about the incidence of Lyme disease in Rome and Venice? I also consider that possibility since I might have been exposed there and in other places in Europe.
Borrelia is almost non existent in Italy. in some endemic areas Ticks carry rickettsia or meningitis I believe but not Borrelia. there is record of some cases of Lyme in the far north near the Alps.
did you go to the countryside and were bit by a tick?
You see since you are sick, you aren't very lucid because your CNS is affected, you are inexperienced, you will rush into labelling your illness with one condition or another, even "stretching" the diagnostic requirements when the realistically it is not plausible.
when were you in Rome exactly? I got what I believe was a almost asymptomatic flu in September 2011. weakness in the legs followed to a week-long headache, diarrhoea, mild paralysis to the right side of the face. watery nasal drip. (sinusitis)
your symptoms and low C3 all points to Autoimmune of some sort. that doesn't necessarily mean that you are irreversibly ill, it could be something that will regress spontaneously.
I was in Rome and Venice in September 2011 actually. I'm not trying to label my disease, I'm just trying to point out to what can be real, instead of trusting on doctors and letting them be the owners of truth. Despite all, it's my health what is wrong not theirs. They were not even able to find out what was wrong with me, it was me who demanded to get tested for B12 levels.
You'll see, Lyme disease is a very complex disease and it cannot be closed on being on the countryside, or more specifically on being bitten by a tick. Most people with lyme never had one single rash or were significantly to the countryside, and they don't even remember a tick bite. But actually I was on the countryside last year all around Europe. I've been a lot to the woods in Norway, a really lot, and I've been to the countryside in Italy, Spain, England and many other countries. Poor did I know about lyme as to act with caution for it. That's why I can't rule it out.
But you know, actually my doctor believes I need a neuropsychiatrist, so he's referring me to one as soon as the anemia is resolved. The stress I suffered from throughout all this process of finding out the cause for my disease really shattered my mind. It really did.
How did you recover of your illness? Did you get a treatment?
How do you think a low C3 and my symptoms necessarily point to autoimmune? My rheumatologist already ruled out many autoimmune diseases, perhaps I should get a second opinion?
I know what you're trying to do because I have been through the same. when I got sick and I realised that going to doctors was pretty much like going to the clowns show I started studying the matter and exploring all different possibilities.
direct infections of the CNS: lyme, meningitis, syphilis, malaria, rabies, etc.
autoimmune: multiple sclerosis, ALS, Lupus, etc. etc.
orthopedic, spinal disc herniations (I didn't realised cognitive symptoms and the rest were related)
and so on.
by being stressed, inexperienced, literally dumbed down by your sickness, you will tend to make fit what really can't fit. Note that it is a common error in medicine that concerns Doctors as well as patients.
that's why if you look up a certain disease on the internet you will always find someone who says it can cause this and that, almost everything.
you post your symptoms in the Lyme community, they will tell you have Lyme all the way. doesn't matter there was no tick, no rash, no fever, negative tests, Lyme is rare etc. it's only a irrational process by which people try to find a explanation to the unexplained.
The need for diagnosis is not only because people seek treatment but also because when sickness is unexplained most Doctors will rush you to the psych ward. you understand is that the alternative is that they would have to admit they don't know how to do their job, which is a horrible prospective to their narrow minds.
In conclusion I can suggest a few things to you:
most likely you don't have a direct infection of the CNS or else you'd be really messed up with fever etc.
Keep it in general concepts, medicine is a lot behind on these type of issues. your problem is probably a "autoimmune reaction". the way doctors diagnose those conditions is empiric, MS, ALS, Lupus, Rheumatoid Arthritis etc. are only labels for a collection of symptoms and some clinical evidence that they often bend the way it pleases them, for something that basically they barely understand.
Most of all: DO NOT go to a shrink. Change doctor, go to a different one. talk to different doctors and pick one who can give you a reasonable answer which might include one like "I don't have a clue". It is normal to be stressed and scared by illness, moreover something is disturbing your cognitive functions, slowing them down, therefore you need to slow down a bit too.
The fact that you were in Rome in Sept. 2011 is a impressive coincidence.
look up things like "post viral syndrome" "post viral autoimmune encephalitis"
ok, and the discoloration points to autoimmune as well?
I don't know about that. you could have more than one condition at once. or it could be secondary to one of the symptoms. it's only a bit of colour when you squeeze your fingers you can barely notice it