My 14yr old daughter has been having problems with her right index finger tip peeling skin and bleeding with no apparent cause. It causes her pain when there is pressure on it. It recently healed and now her left index finger is peeling and bleeding and last night her heel had a big patch of skin that has lifted on the bottom. She's been to the doctor, rheumatologist and dermatologist and they don't know what is wrong. Could stress be a factor?