Lately my shoulder has been causing me problems.
Pain. Tingling fingers. That has been part of my everyday life.
Yesterday it kept me from participating in Winter Cup - annoying, since the weather was so fine. But I couldn't face clinging to the handlebars of my mtb for 1½ hour.
Thursday I'm having my shoulder x-rayed. They will check if there is arthritis or something like that in there. I don't believe they will find anything on the x-rays, but it's worth a try.
Last week I had 4 days of hotline work, and that was bad for me. My regular job is a lot more flexible, so it doen't strain my shoulder as much. Hotline, however, keeps me bound to the keyboard. My shoulder does not like that at all.
I wish I could just get a new shoulder like you get spare parts to your car - but it's unfortunately not as easy as that...