thx doods
I took a week off from upper body and went back into it slowly over the last few days. Right now I can do everything normally with no pain at all except facepulls or pullaparts. medium-heavy bench/overheads, chins, rows, etc have not bothered it over the last two upper body workouts.
If the pain comes back despite taking the next few weeks off of bothersome exercises and decreasing overall intensity then I will definitely see a PT. Since I'm pain-free now I'm slowly working on some new shoulder mobility exercises from Ceaze's stickied thread in addition to my usual thoracic mobility routine.
What caused the flare up in the first place was doing a ton of back volume and heavy pressing in the same workout because I didn't decrease the intensity of my routine after increasing training frequency from 3 days to 4. I think the lack of recovery was a huge factor.