My 16 Year Old Daughter

My 16 y.o daughter has been going through with her stomach pain. We are due to see a gastro doc on Thursday, not sure we will find anything there considering all her blood tests have come back normal again, and xrays as well as ultrasound showed nothing. She had started therapy in late November and has been going weekly, although it seems to be helping her anxiety her stomach continues to be an ongoing issue. To the point I am really concerned. Her Dr has put her on stuff for re flux, antacids, probiotics and nothing is helping, in fact its getting worse some days. She has been to the nurse at school 23 times since the start of the school year, in so much pain I have had to pick her up. So her Dr and I decided to write down a timeline of when all this started to come about, and what we come up with was it all seemed to start after her 2nd Gardasil shot and has worsened. I am about to cry I feel horrible that if the shots are whats causing my daughter so much pain.