I have been on 50mg of levothyroxine for 4 years since I was diagnosed as having an underactive thyroid following the birth of my son. I have since suffered terrible joint pain and muscle spasms almost everywhere (but especially my lower back ( which keeps me awake every night). I have recently had a blood test and the results came back that my TSH level is 8.6.
My doctor has now upped my dosage to 100mg and told me to get re-tested in three months time. Do you think this dosage will be right for this level, and have chronic back pains improved in anyone with a similar experience to mine. I'd very much appreciate anyone's views,