I have a bad toothache which is causing me to be light headed is that normal? i've had a partcial root canal done but has gotten worse over the years.

See dentist ASAP: do not wait any longer. See a dentist ASAP to avoid a possible dangerous infection.

Perfectly Normal: Pain of any sort, especially a toothache can cause all sorts of symptoms, including dizziness. You really need to see a local dentist to determine what can be done to solve your problem. Feel better soon.

See a dentist ASAP: If not treated in time, the infection can spread from the tooth to the supporting jawbones and other parts of the body. The only way to cure a toothache is with dental treatment. See your dentist for consultation.

Yes, but: Yes, but the pain is NOT normal. There is a problem. See DDS ASAP.

Infection: Infection, or analgesic overdose, can cause lightheadedness. Please see an Endodontist, a root canal Specislist, before infection worsens.