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Can beta blockers mess with thyroid blood work

After a year of stress of caring for my dad in 2016 I was subclinical with a TSH of 4.4 with total and free t3 and t4 within range but on the lower end.

Finally after continuous hair shedding to the point people thought I chopped off my curls they put me on a low dose of Levoxyl 25 mcg.  My hair grew back thicker and stop shedding  and skin no longer dry and I felt like myself again.  8 months later I started losing chunks of hair again and my levels where exactly back to where they where before taking Levoxyl.  While on Levoxyl my TSH was a 2.6 and t3 and t4 went up to mid range.

I  was inconsistent on the dose not believed by my doctor and put on 50 mcg.  My blood pressure down too low was falling asleep ice cold and heart rate too high.  

They put me back on the 25 mcg of Levoxyl but I still had high heart rate and low blood pressure and would balance back but my hair and skin started to recover again.

I could not take it so I stop the Levoxyl for two days and my vitals returned to normal.  I was not given good guidance and waited just 5 days and started Synthroid 25 mcg which lowered my heart rate, did not affect my blood pressure, but after 15 days increased my heart rate too much and gave me symptoms of being hyper.  

A week later I went back to Levoxyl 25mcg after discontinuing Synthroid and Did great for 14 days until I messed up and took two doses in one day and ended up getting severe insomnia.

I could not sleep for more than an hour a day, my brain just would not shut off, I’ve always been able to sleep just laying down, so deeply so easily.

I was given the option to stop, so I did and eventually was given sleeping pills.  Which work sometimes.

Over the next two years I just watched my hair and my curls grow thinner and thinner to the point where I could just pull my hair back.  And continued with the dry skin.

I got tested again 2019-ish and my TSH was a five another time it was a 6.25 and my total T4 was again on the lower end but still within range as well as my T3.  I believe they did both total and free.  Went back on Levoxyl 25 mcg and the insomnia got worse, wasn’t horrible I should’ve stayed on it but they switched me to the generic which gave me the same side effects as Synthroid.
I stopped again

2020 September got blood work done and the results were completely confusing.

Yes you are absolutely correct, they put me on a beta blocker due to a high heart rate, due to stress.  My blood pressure is normal, so I get ice cold every time I take a pill and it makes it harder to sleep and stay warm and it does affect your cognition.  I hate it but at least I thought I could start taking thyroid medication and get some confidence back.

Even before I got the high levels of stress my TSH was averaging a 3 naturally.

I took the beta blocker for eight days prior to doing bloodwork.

They tested my TSH which was a 2.5 on a scale 0.4 to 4.5.

9.3 my mistake was my total t4 on scale 4.5 to 12.

T3 uptake was a 22 tested in the afternoon 24 to 39% scale.

My T4 total and free while on medication has never been this high.

The only thing that changed, variable factor was the beta blocker.

I read online that it will just alleviate symptoms if you are hyper such as having a high heart rate but I do not have any symptoms other than having a higher than average heart rate at 99.  

After years of having a TSH that just creeps up higher, with worsening symptoms now I’m normal???

They reran the blood per my doctors office and the results came back the same.

My name was not on my vials of blood so the lab allowed me to do a redraw.  Again I did the re-draw and the results were pretty close again.

They gave me a script to do it at another lab.  The cost is just hard to deal with right now and has been for the last few years.  

I know you mentioned to do the free, but they wrote a script which was complicated to get without an appointment for a total T3, total T4, TSH.

I have been on the beta blockers now for 47 days and I don’t know if it’s my imagination or if I’m shedding more hair because of the Beta blockers.  My face and head have become greasy and flaky.

I know this is a lot But my glucose is lower than normal and I read beta blockers can change your glucose levels.

I am finally ready to take thyroid medication I thought the beta blocker would not allow my heart rate to go to high, and I could get some confidence back but I’m just at a loss.

I have to take Pepcid because the beta blocker caused stomach acid and bloat which I just deal with the bloat, and also caused nausea which  has tapered off thankfully, my pharmacist said with me having IBS and many others not having it this is a common or can be side effect.  I really do want to get off the beta blocker, or switch to another but I was told the likelihood would be the same of side effects and especially being cold.

Sorry getting off topic, do you know anyone with stress induced hypothyroidism who blood work came back abnormal after taking beta blockers and still being symptomatic.  Sadly I have to be cautious because of the cost of doctor visits and bloodwork it’s really hard to deal with.

Any information would be greatly appreciated.

Thank you!

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