Shoulder problem!

I have been having a problem with my shoulder lately, sometimes whenever i’m doing something and move my shoulder a certain way i hear and feel a POP! in my throwing shoulder. Also when i do arm circles for intense team sports in school for warm up, in my right shoulder it feels like somethings cracking, rubbing or something.

My arm doesnt hurt but it’s just been bothering the piss out of me lately. Also i live in Minnesota so i havent been doing any throwing since mid fall or so. I’ve also been working out this winter and trying to strengthen my arm so i dont know why my arm has been acting up.

HELP