Please tell me you at least have run a thyroid panel. Also you plan on running a thyroid panel while you're on the T3. I take levothyroxine for a slow thyroid for about five years. I have taken as much as 100 mg and I'm only prescribed 50mg a day. I know it differs from person to person but more t4 doesn't make me lose more weight at all. All it does is give me diarrhea LOL. My doctor has always been lazy and only tested my T4. This next time around I'm getting a full thyroid panel so I can see how my t3 looks but someone who has a medical condition like me I will tell you one thing. I wouldn't go just taking thyroid medication all willy-nilly without even running labs. I won't blame you for the clenbuterol because I use clenbuterol about once every 2 years... it does help me lose weight but I'm in pretty good cardio health and can bike really fast miles at a time. For me the clenbuterol makes me breathe a lot better cuz I do kind of have light asthma and it does speed up my metabolism . I always lose quite a bit of weight but I don't take it for more than 60 days. I've done quite a few cycles of it though and I'm a little bit experience with clen I would not recommend you doing it for 60 days your first time around maybe you can just do it for 30 days and see... but honestly you got to be in pretty good shape already. I wouldn't want to be out of shape taking clenbuterol. I mean we all take risks when we take stimulants but it's a risk I have taken many times but like I said my heart is in pretty good shape I've been doing advanced cardio my whole life. I can ride 40 miles like nothing and not even be tired the next day.