Strange popping sensation between rib when breathing deeply
So i have this popping sensation in between 2 of my ribs. I feel it right underneath my right pec muscle and directly below the nipple. What happens is if i take a very deep breath, when i get towards the end of the exhale i feel a pop in that area, like cracking a knuckle. Its a small pop, isnt painful, however i have always had a dull but faint ache in that area for maybe a year now, and it hasnt really gotten better or worse. What made me somewhat concerned though, is i feel a faint twitching maybe a couple times a day lasting about 30 seconds in that very same area, and this has happened every day for the past week. I've had no prior injuries, and i can breathe just fine. Im getting it checked out very soon. Im 25 y/o, dont have any pre existing conditions and not taking any meds. Any insight on this?