Hi. About 1 month ago, my chest began to be very sore, for no apparent reason. I have no couching, and I dont think its from any strain. When I breath out (let my breath out & not in) the pain gets unbearably worse. Almost like my chest is caving in on itself, or caving in on something just underneath. The pain is directly in the middle of my breasts but just above them. When I touch this upper, painful, chest area, its extremely tender and sore. And it hurts bad to even press it a little bit. When this happenned 1 month ago, it lasted for maybe a couple weeks, and then went away. Well, this pain started again today. What could this be? I also have problems in my legs, I think its nerve problems, but doctors cant figure it out. Sometimes I have such bad pains in my groin (upper legs) that I limp to walk forward. (my legs cant take my normal long stride-like its being blocked from walking) Im tall, and 27 year old female. Could the legs and chest be related. I really appreciate any help and information you can give. Thank you!