Facial numbness with a toothache worry me. Is it normal?

Very troublesome. There could be nerve involvement. See your dentist immediately.
Facial numbness. Facial numbness for any reason is not normal and is cause for concern. Facial numbness related to a toothache may be caused by a tooth infection affecting the nerves surrounding the tooth. Please see your dentist as soon as possible.
No. No. Can be from infected tooth or something more sinister. See oral surgeon for evaluation.