Clay, I am an Occupational Therapist and a Certified Hand Therapist who has treated patients with shoulder issues for years. I am happy to try and help you navigate what might be bothering your shoulder.
You've got some good advice on the thread. I would see a doctor for imaging. Based on your age, and not knowing your profession, I think therapy could point you in the right direction.
I have had to rehab my own bouts of lateral epicondylitis (aka tennis elbow), TFCC sprain, and shoulder impingement/strain issues that affected shooting my recurve. Worst thing you can do is nothing and hope it gets better.
Feel free to pm me your contact info if you'd like to talk more.