Hello all. I am hoping that someone on here has some experience that is similar to my own, but successfully got to the bottom of it.
I have been on MercuryPharma Thyroxine alternate 25mcg/50mcg for a couple of years and developed strange hearing problems. I work in a normal office, with sound levels sitting around 60 dBA most of the time, so it is not a noisy environment, but when I get home in the evening and move to the quietness of my house, I get a temporary hearing shift that sounds like I have just walked out of a night club. This lasts anywhere from 15 minutes to an hour, before my hearing settles down again. Oddly though, if I stop the Thyroxine for 2 days, it does not occur, start it again and 1-3 days later it is back. It is totally repeatable and makes no difference what the dosage is. If I just take half a 25mcg for those 2 days (12.5mcg), it doesn't go, but make it 0 and guaranteed it will disappear... and I do mean guaranteed, I have tried this 5 times now.
The level of testing includes the last couple of weeks of completing stopping Thyroxine (Iknow, I shouldn't do it, but I needed to prove to myself that I'm not mistaken), during which, there was absolutely no issue with the shift in hearing at all, now, back on it, starting at 25mcg, it has returned within 2 days. My GP and every other specialist I have seen looks at me as though I am mad. At first it didn't really bother me, but I am starting to feel that recovery is taking longer and longer and I am starting to develop a ringing in one of my ears and I am convinced that damage is being done.
Any help from someone with a similar experience would be greatly appreciated. I am 34 and hearing tests show that I still have very good hearing from my age, with good balance between the ears.