What does it mean GP in English? What stuff have u taken during the cycle? At first visit good endocrinologue- I think he'll ask u to take some blood tests for TSH, T3, T4, ofcourse testosterone and other necessary hormones in humans body. It's also possible to get recomendation by him to do ultrasonography of the thyroid,etc. I'd advise u to do every tests, what he asks, because unthreated thyroid problems might damage further life quality a lot. I had ****ed up my thyroid in my late teens(I had some ****in adenoma in it and hypothyroid symphtomes (very high tsh levels, what's really bad), so threatment was necessary), so it was impossible to gain anything at gym. Now I'm on levothyroxine (synthetic tsh analogue) 100mcg/day for apr. 3 years now and I'd say it's improved a lot!