I’ve dealt with extreme exhaustion (sleeping 12-16 hours a day) and weight gain the past 6 months and struggled to figure out a diagnosis; however, finally figured out I have Hashimoto’s thyroiditis. However, for some reason I have both high TSH and high T3– when I hypothyroidism is suppose to cause low T3…. my TSH is 4.9 uIU/ml, my free T3 is 4.5 pg/mL and T3 was 230 ng/dL. The rest of the numbers were in range– T4 being on the higher end. I was doing some googling and saw that high T3 and high TSh can mean tumors and I just wanted to make sure that wasn’t the case here.