My 12 yr old daughter is experiencing vein pain in her forearms and hands. She complains they are aching several times per week. What could this be from? She also has other health issues not figured out yet that may or may not be related, including stomach aches, heart burn, head aches, dizziness and shortness of breath. This has been going on for about seven months. CAT scan, chest x-ray and general blood test all clear. We have seen one specialist that thinks she may have a pinched nerve in her neck causing the head aches and dizziness, and she was put on Zantac and Prevacid last week for her tummy...