Where is the pain, or not feel right? Any specific lift or motion? Let me preface by saying I am not a medical pro or therapist, but experienced shoulder issues last year. I am 6'5 desk jockey, and poor posture most of my life. A combination of prolonged heavy bench and weighted pull ups / chin ups developed a tight lat and pec on right side that caused severe shoulder pain.
What I did to treat: stopped pull ups for about 6 mos. Worked on t-spine mobility and posture (there are a lot of good stretches here on the site but the one that helped me most was the kneeling in front of bench with elbows on bench, hands up, and lowering head between arms). Lat and pec stretches, and the no-money band pullapart.
Once I was able to add pullups back into routine, I only do neutral grip, and only in low rep intervals (3-5 between all work sets for the day). I also saw a therapist to work out the tightness in lat / pec connection. This helped immensely. The improvement / awareness of posture has enabled me to set PR's in all overhead work, and without pain.
Anyway, sorry for the ramble. Just my $.02. Good luck!
I was doing mobility every day, and I got away from it.
I have since resumed doing full body mobility every day before I go lift.
It looks like this: ~Every Day Before I lift~ Limber 11. T spine PVC rolling. T spine rotational stretching. (All fours, then one hand to ceiling.) T spine stretch on bench. (Elbows on bench, arch and push torso to floor.) Wall sit for a 20 second hold. Pendlay weighted dorsiflexion. Standing toe touch. Cobra stretch. (Lay prone, arch back and push down on floor with hands.) Apley stretch for 10 seconds in each position. Handcuff stretch. Sleeper stretch. Mini band dislocations. Broom handle dislocations. Band pull apart. Banded no money stretch. (Back to wall, grab band with underhand grip, externally rotate.) YTWL with scarecrows, skiers, and rear lateral raise. Lateral raise. Forward raise to t-arm. Overhead shrug.