I was diagnosed by my doc about two years ago after a blood test, funny enough it was picked up by a kinesiologist that I was seeing for an unrelated illness, Anyway, I was prescribed levothyroxine, 100mg I recall, these gave me palpitations and an anxious feeling so stopped taking them, had another blood test, was prescribed a lower dose to help with the side effects, 25mg, this helped, then had another blood test, over the past few years my dose has been slowly increased, I’m now on 150mg and feel fine, I bike a lot and manage to keep my weight down, I eat normally and drink booze in moderation. All is good.