Ive been on hgh 2ius a day for a few months feeling perfectly fine. I decided to add 50mcg of liquid t4 in just to be safe as i recently started seeing these types of threads and info. But im an idiot and didnt get blood work done now as im typing ( after my second nap today) this i realize ive probably induced mild hyperthyroidism since all symptoms relate to what im feeling. Luckily i did bloodwork today so im discontinuing t4 until results come back. Im not saying using t4 is unnecessary. It might help some people doing higher doses. But at 2ius i myself definitely dont need it. Ill post my thyroid levels when i get them in case anyones curious.