Weightlifting injury

Hi guys has anyone ever experienced and injury like mine because I find it kind of strange.
I was bench pressing last night and I felt sudden pain on my right pec very close to my arm pit. It wasn't overly painful but noticeable about a 6 maybe a 7. I was super setting and was able to finish out my workout but could feel pain of about 3 or 4 for the rest of the session.

Next day and when I breath in I get a pain of about 2 or 3 from the center of my chest to my armpit but it feels like it's under my ribs and under my ribs on the back . This is what confuses me because I have no pain to touch at all anywhere just when I take a deep breath or if I sit still for a while and go to move. Oh and coughing and sneezing are the worst

I still have full strength full mobility and only have pain if I stretch my chest or decompress it. Its a weird one and I'm not sure what to do.

Any help or advice is welcome