question: I went the Dentist last week to have a deep scaling of my gums. It is a very painful  procedure and because I am very sensitive to pain it required excessive local anesthesia injections. During the procedure I would tell my Dentist I was lightheaded. She would say it was my nerves and to relax. When the procedure was completed I attempted to get out of the chair and was weak and very dizzy.  The Dentist allowed me to relax and gave me water. After 15 minutes I was still shaky and my husband came to pick me up. Eventually after a nap the dizziness stopped. Because this has never happened to me before is this an indication that my liver or kidneys are beginning to fail ?