Hello everyone, I have been hypothyroid for several years now, My last blood test in November 16 was fine; my Endo was happy with the blood test results. My next appointment with him is in November (17) this year. However: Over the past few weeks I have been feeling tired and having extreme muscle aches over night, as I try to sleep. I have been sneaking an extra dose of levothyroxine, I am on 75 mcg, I have added an extra 12.5 mcg by cutting a tablet, so 87.5 mcg approx. I have had no discernible side effects so I am assuming I need more levothyroxine. (??) I know levothyroxine is a dangerous substance. I increased my levothyroxine last time on my own from 50mcg to 75 mcg and the blood test showed a stabilisation of the condition. I am seeing my GP on Tuesday coming. I also have ME so this feeds into any diagnosis. Can the readings of T4 and T3 go down in the few months since my last blood test? Thanks for reading.