For the past 3-4 months I have been noticing that regularly I have been getting bruises in the middle area of my ribs (on the skin abgove).It looks like a curvy and squished W and that area hurts whenever I try to pull myself up. Either from sitting, lying or crouching. I have been having a rather large growth spurt lately and I am wondering if it has something to do with that. What do you think? Also, if you have any other explanations for this, please feel free!