URGENT! SHARP PAIN WHEN BREATHING IN DEEPLY IN RIBS?

Well, I'm definitely not a Doctor but since I've had similar symptoms I'm gonna give answering this question a shot! Have you fallen down lately or bumped into anything, or had anyone or anything bump into you? If so, you may have cracked a rib. When you breath in deep your lungs expand, which makes your rib cage expand to accommodate them, so a cracked rib can cause A LOT of pain if that's what's going on. If you've have no recent injury to that area, it could be that you've pulled a muscle. Have you recently been very active or started a new exercise regemin? Both of those can cause sore/pulled muscles and the rib cage is a very muscular area. Finally, is the pain in the middle of the rib cage or more severe on one side or the other? If it's in the middle you could have a hernia. If it's more prominent on one side or the other, it might not be your ribs that are hurting at all, but one of your organs that are "tucked away" under the rib cage as you ribs don't just contain/protect your heart and lungs, but also several other organs (which ones it could be would depend on which side of your rib cage hurts). These are just SUGGESTIONS as to what it could be - as I said above, I'm not a Doctor! I know you said "please don't say 'go to your Doctor'", but if the pain continues or gets worse, you really do need to go get checked out by a trained professional. I hope this helps a bit - take care and good luck to you!