Hi. My name is malika. I am 15 years old I will be 16 in two weeks exactly. I have a 7 month old baby girl. Since i gave birth to my daughter I've had multiple problems with my body. The last two weeks I have had piercing sharp pains though out my chest and back. At certain times the sharp pains will spread through out my whole entire chest, ribs and back preventing me from breathing and even moving. The more I breathe in, the more it hurts. I also feel nauseous all the time. I am really concerned. I can't participate in any sports or anything with out the pain coming. I also have had severe pain in the upper/middle part of my abdomen. What could this be?