Hi everyone, I've been kind of curious about something and I'm wondering your opinion. A while back I noticed a terrible pain in my chest (in my cleavage area) everytime I'd take a deep breath. It was pretty scary. I went to the doctor and she said it's something called Costochronditis. She said it's caused by a few different things (in my case she felt it was a viral infection in my chest). Anyway I did some research about this and here's what it says can be the causes What causes costochondritis? It is often difficult to indentify a single cause of costochondritis. This condition is thought to be bost commonly due to repetitive microtrauma, or overuse. This means that activities are causing repeated damage to the cartilage of the chest wall leading to inflammation. The most frequently affected age group is young adults between 20 and 40 years old. Costochondritis can also been found as an overuse injury in athletes, in particular this condition has been identified in competitive rowers. Repetitive microtrauma jumped out at me. I started thinking back to my last two partners. They were both really into my boobs and loved to titfuck me. Sometimes they'd get a little over zealous to the point where I'd notice afterward and sometimes for a few days my chest hurt a little bit. So now I'm thinking hmmm maybe the tittyfucking was the "repetitive microtrauma". Have any of you had similar experiences?