I started on T3 only 2 weeks ago, slowly titrating up from 12.5mcg to 25 mcg to 37.5 mcg and finally to 50mcg. I felt fine (no jittery side effects or heart palpitations and my cold feet and hands slowly warmed up after many years of cold feet and hands despite living in the tropics)! But 2 days ago I had a fever running more than 100F (37.9 degree celcius) for 2 days straight and a cough and cold. So I am wondering if the fever is caused by the flu or am I taking too high a dosage of cynomel? Has anyone had body basal temperature rise so high on T3 only?