My daughter is a healthy 23 year old who has had frequent nose bleeds lasting approximately 30 minutes each. She went to ENT and had nose cauterized. Following cauterization she began feeling sweaty, clammy and overall not well. When she stood to leave, she fainted. She came to when hit the floor, got up and fainted again. Blood pressure was 128/78 before cauterization and dropped to 90/58 with fainting spell. Is this normal? She has never fainted before.