I screwed up my shoulder sleeping about a month ago. Hurt like hell but instead of babying it I engaged in two days of rigorous physical activity because, well because life is busy and sometimes you just need to get shit done. On the third day it hurt so bad I only slept about two hours and I couldn't lift my hand above my waist. I was unable to open the shop for the first time ever. I called a friend of mine who had a hippy witch doctor guy who got him walking when he put his back out. The guy makes house calls and he had a spot in his schedule that day. So Darren the Eastern medicine hippy witch came by, stuck needles in me, pressed burning plants into my flesh, poked and prodded all over and harshly criticized my life style choices. The arm hurt a bit less and I was able to move it up to my belly button. He said it might be a frozen shoulder in which case I was fucked and wished me good luck. Next morning it hurt significantly less and I was able to use it for work. My shoulder loosened up and started making clicking clunking noises. Darren had mentioned that this might happen and I should take it as a good sign. Third day it hurt crazy bad. Not the sharp pain I had in the beginning but a deep muscle ache, felt like when the strongest guy you know hits you in the shoulder as hard as he can. Next morning there was almost no pain but still plenty of clunking around. Couldn't believe the pain I had when going to sleep was gone in the morning. Now's the bit that I found interesting. He told me to take pro biotics, stop drinking, smoking weed, eating sugar, drink lots of water, change how I breath, drink apple cider vinegar and take magnesium. He said not to worry about tobacco, it was the least of my problems and that while I should quit it hadn't much to do with my shoulder problems. He also said my guts were inflamed and that they were the the reason my shoulder got fucked up. Meridians, blocked channels blah blah blah... I chronically have no faith in doctors, be they in white coats or dudes burning mugwort on my body. They've come close to killing me more than once, saved my life once and I think they generally aren't as competent or as knowedgable as they let on. But fuck it, I decided to give hippy witch doctorism a half hearted try. So I already drink a lot if water and take magnesium for muscle pain, I had those two covered. I cut back my drinking to every other day and a bit less on the day's I did drink (on the order of one or two beers). I started taking pro biotics and drinking vinegar. I didn't stop smoking weed, it'd take me months to smoke an eighth, most weed smokers I know wouldn't call me a weed smoker. Crazy shit, I went down two belt buckles (well more like one and a snug half) in three weeks. If I lost weight it was negligible. I think it was mostly reduced inflammation in my gut. I don't really feel any different, or healthier or any of the shit I'd hope I would from these results but it's still wild to go down two belt buckles in three weeks.
Dude go to a physical therapist. It’s entirely possible you have a rotator cuff or labrum injury. At the very least they can help you prevent another injury like this in the future. Shoulder injuries are the #1 problem I see in my line of work. Almost all of them are due to bad shoulder mechanics. Here’s a quick test; push your shoulders all the way forward. Now lift them as high as you can. Push them behind you as much as possible and then pull them down as low as possible. That’s the position your shoulders should naturally rest. Let go and you’ll most likely notice a huge difference from actual resting position. As your shoulder rolls forward it rotates the humerous, which forces your rotator cuff muscles to be impinged or work at a terrible angle. It can also put undue stress on the labrum. The longer your shoulder is in this position the weaker these muscles become and the more prone you are to injury. Nutrition and generally living healthy works wonders on the body, but it can’t solve bad mechanics.