two big lumps on the right hand side of my chest

I got a hit playing sport to the top of my chest last year and i played on and was fine, but the following day i was in difficulty breathing and moving , xrays showed up nothing and a massive lump is sticking out of the front of my chest under the sternum , i still get small breathing pains and the doctor told me nothing can be done with it , this year im back playing again and nearly the exact same thing has happened again. i got another hit in a match and i went to my doc with breathing pain with another lump from a hit has come out just underneath that one, he gimme diplofenac sodium daily and said i could still play , 3 weeks on now im back playing and have two big lumps on the right hand side of my chest ,all my team-mates laugh about it . when training i had to pull out of high intensity running because i get too caught up and have back pain on my right hand side too , can anybody help me with what am i to do, my chest doesn't feel right inside or out