I have bell's palsy (8 days so far) after an ear infection (43, female). 2 days ago I started getting extreme pain in jaw, ear, neck. Should I worry?

Not Bell's Palsy. You do not have bell's palsy. You have herpes oticus. The treatment of antiherpetic and steroid is appropriate. Pain medication is often needed and should be prescribed if over-the-counter pain medications are not working. The viral eradication should occur within 2 weeks but the loss of nerve function can take longer, sometimes months. Work with your doctor on this.
See a neurologist. Your additional issues may be due to the bell's palsy and tmj/tmd elements that could arise from altering your habits and functions. I would see a neurologist and get advice what direction to take.