my daugher has had out burst of bruises on her legs when she does exercise like runs a mile or when she jumps and dances..yesturday she ran a mile at school and when she got home she would but her right hand down on her side and her vain from her hand buldge out and her hand was throbing and he got really red and when she lift it back up it would stop hurting her and stop throbing and the vein would go back to normal.