I have been having a lot of steroid injections in my back; I would appreciate you answering my question...: Can having months of these steroid injections affect my thyroid levels and the Synthroid dosage I now take for hypothyroidism? I have not taken two days of dosage because of symptoms of hyperthyroidism, and my tremors have subsided and I can finally sleep.....it was just a test to see IF my Synthroid was causing so many symptoms of hyper.. since they have been occurring for about three months, which is the time period I have been having so many steroid injections.....(these were leading up to radiofrequency ablation....done two weeks ago, which is the second time for this procedure...meaning I have had a total of SIX steroid injections over the past few months!!) Is it possible they have influenced and/or altered my thyroid? Or could I actually just not be hypothyroid anymore? THANK you so much for your help and intelligence!! Catherine