My rotator cuff clicks. It's because I have tendinitis in my shoulder, from typing & mousing. I went to a physical therapist for it for awhile, where they did heat, exercises and ice (maybe not in that order? I can't remember). The exercises were to build up arm strength so that the tendons aren't doing all the work.

I could show you a couple of the exercises that I remember next time I see you.

--Cappy