Pain in ear and around ear. swollen lymph node below ear, loss of balance. had 2 abscessed teeth removed. could another tooth infection move to ear?

Definitely yes: Dental infection if not treated it can lead to serious complications. The infection may spread to your jaw, cheeks, eyes, ears, sinus and to other areas of your head and neck. The antibiotics and painkillers will give you only a temporary relief. See any dentist for examination, x-rays and treatment.

Ear: Sounds like more of an ear problem than a mouth problem. To be sure, see both your Physician or an ENT specialist, and see your Dentist or a specialist Oral Surgeon. Between the two, with proper examination/evaluation, they will determine the cause and the appropriate treatment.