Yesterday woke up with a headache and lasted all day. tonight woke up w/another headache and my ear and upper layer of teeth also hurt on left side.

Grinding???: Could be many triggers, but sounds like a potential TMJ/TMD issue, exacerbated by grinding of the teeth. Need to be evaluated by a dentist/TMJ specialist. Headaches can have other triggers and may have to explore other causes too

Your symptoms: Your symptoms dictate you see both a dentist and a physician to evaluate the cause(s). When was your last dental and medical exam? Sounds like it's time to go. There may be one main cause of multiple symptoms or possible more than one issue.

Nocturnal bruxism: is the medical term for clenching or grinding teeth during sleep. See your dentist for evaluation and night guard fabrication.

Two possibilities: 1) tooth grinding (bruxism) - one indication of night time bruxism is that the tooth pain is greater in the morning and subsides as the day wears on. It should effect both upper and lower teeth. 2) sinus infection - this can cause non-specific pain in the upper back teeth that lasts all day with no pain in the lower teeth . It may get worse with change in position and be accompanied by stuffy nose

TMJ/Dental/Sinus: Could be a TMJ (jaw joint) problem, dental problem, maxillary sinus problem. I would start with an oral surgeon exam. He/she can diagnose and treat/refer as needed.