I have been having lower abdominal pain in my right side, i had abnormal bowel movements for awhile that were all the time after I ate. I now just have pains in my lower right stomach below my ribs. Tonight when I breathe my chest hurts and it hurts around my bellybutton. It feels hard and I only ate some vegetables and I feel stuffed. I also have been getting rashes on my feet at night and my lymph node in my left side of my neck is swollen? I don't know if this has anything to do with anything. I had blood work done and it was normal white and red blood counts and said I did not have an infection? I have a colonoscopy scheduled but I am not sure what it could be? I am a 19 year old female.