I was waiting about 6 hours, and decided to leave and go to immediate care instead. My partner and I have enough medical bills as it is because of his own condition, and my family had me convinced it was probably just a pinched nerve. Immediate care was unconcerned and thought my neck was probably just stiff, though they admitted they didn't have the tools necessary to check for a pinched nerve. The pain dissipated over that night/ next day, and I haven't had a problem with it since. Then after I've started feeling aches on my left side during isolated incidents when I normally wouldn't before that. I wouldn't even describe it as pain, more "huh, that's a bit uncomfortable." I guess I can also describe it as now I occasionally don't "bounce back" right away. Like ringing out a rag made my left fingers a bit sore, sitting a bit too long on my left ankle made me limp slightly for just a couple minutes when I got up, just little stuff like that.

If the "holy f*ck I can't move the upper half of my body more than an inch without feeling like I'm getting shot" pain happens again, definitely taking an Aleve and scheduling a doctor's appointment. Not doing so now because I don't have the money for a problem that barely effects me for maybe a few minutes at a time. (The crunchy shoulder is all the time, but it doesn't really feel like anything.)