Had a relatively normal chest/shoulder/back day. A little bit of everything. Focused mainly on machines this time to mix things up. About two hours after my workout, I went to raise my arm, and I physically couldn't. I got a horrible shooting pain. Popped some advil and let it rest for 24 hours carefully. Woke up today, no change.

Shoulder is in no pain when arm is hanging down by my side or typing/writing. However, I get extreme pain when I go to put a shirt on. I can lift my arm straight up parallel when parallel to my body, but when I bring it above my head, pain starts to kick in. If I bring my arm forward as if I am doing a front raise, I get a little bit of pain. The absolute worst is when I move my arm across my body and try to raise it up. I physically can't, it gets unbearable at this point.

What do I do? I know you guys aren't doctors, but I need some advice.