Personally I would want more information on what the hell is going on before I do anything on my own.
Losing 60 pounds is a big deal man, 6'3 and 160 is concerning. I would be shitting myself if I was eating the same and exercising and then lost almost 25% of my body weight. No ritalin adderall, concerta meth whatever right?
The fact is if you are eating and not on drugs and lost that much weight you are sick. Get that worked out. I would see endocrinologist. It sounds like you dont know whats going on with this situation, kinda like no big deal i just lost half my weight sort of thing.
The test level you posted will not make you go from 210 to 160, no way. It sounds like your MD is going "we dont know what the fuck is going on so lets give some growth hormone" huh? doesn't make sense man.
I would want to know whats going on. I know you said you didn't want to hear it but how many cal you taking a day.
I hope you get it sorted out man.