I have had some shoulder pain for about 4 years now but in the last 2 it has really progressed and for the past 2 months it has been very bad. I am on a 3 week wait list to see a person who specializes in shoulder injuries. for the time being my doctor told me to stop all cycling besides light rides around the neighborhood on my hybrid. Doesn't look like I will be doing much riding this year. sigh.
Waterford RS-33, Salsa Vaya, Bacchetta Giro 20 ATT
I switched to a recumbent (Bacchetta Giro 20) as my usual ride last year primarily due to shoulder issues related to wear and tear from work. No regrets. However, I still ride my uprights for some day trips here and there. I've noticed an improvement since I've also switched to a less physical job (CNC Operator). Was a Die Setter for 20+ prior to that.
If you could borrow or at least test ride a few recumbents, you might like what you find.
Good luck in your recovery