I'm currently 16, and have been thinking I have thyroid issues for a while. I then thought my symptoms indicated diabetes. I posted a question, and a woman said my symptoms showed thyroid problems. Here's several of my symptoms- foamy pee, unable to lose bodyfat fast(as unbelievable as it is, I have a perfect diet since I'm bodybuilding), slow muscle recovery, excess sweating ,muscle weakness, bad immune system, and on occasions I'll get very hungry.