I've been having a bunch of medical issues for the past 10 months since having a pretty bad bout of sciatica. Since then, I've been dealing with widespread twitching (diagnosed by a neuro after an EMG as benign fasciculations), general anxiety (am starting CBT shortly) and just feeling really run-down (exhausted and weak).
On my thyroid issues, I saw a GP on 21 May regarding the twitching and he ordered a bunch of blood tests which came back with these results among others:
TSH: 0.445 (range 0.65-3.7)
Free T4: 16.2 (8.8-14.4)
B12 serum: 388 (145-637)
Calcium serum: 2.47 (2.09-2.46)
Potassium serum: 4.1 (3.6-5.0)
I only got the results a month later, and the GP (a different one) noticed the slightly high T4 levels and ordered another blood test. The results of those (taken 18 June) were:
Free T4: 14.6
Based on these results, a third GP started me on 5mg Carbimazole per day which I've been taking for about 10 days, but since then, I've felt as tired/foggy with difficulty falling/staying asleep, if not more so. And I don't know if it's coincidence, but I've started feeling a dumb ache/numbness in my left thumb, more tremors in my fingers (especially the left thumb) and some general achiness/weakness in my body since I started the Carbimazole.
I'm thinking of stopping the Carbi for a few days and monitoring if some of the new symptoms subside, and going back to the GP in the next few days to see what he thinks and maybe get referred to an endo. But in the meantime, does anyone have any thoughts on whether my recent symptoms might be an adverse reaction to Carbi (and if so whether they will get better over time), or whether they are symptoms of high T4 that will take time to resolve as I continue on Carbi (I've read that effects from ATDs only show up after a few weeks)?