Any oral maxiofacial dentist here? Help.

I have right lower jaw pain with swelling for past one month. It started after I did lots of chewing one day. Next day ear pain, jaw pain exactly under the ear started. Its very tender and pain to touch under the ear. No redness. I went to Dr and got antibiotics for sinus,ear infection. I thought the swelling is because of that. Sinus cleared up. Still there ear, jaw pain with swelling was there. Went to an ENT, he said no infection in sinus/ear. Went to dentist last week, took x-rays and said might be a crack/fracture in one tooth. Went to Endo, he confirmed no fracture, might be minor crack in 1st molar. More sensitivity in first low molar, so said RCT, crown. Endo said this crack or sensitivity will not give jaw swelling and he said not sure why. I have pain continuously under the ear in the jaw. Pain inside ear too. Is like scratchy sore pain in the low jaw where jaw ends on top of the neck under the ear. Tender to touch. I hear snapping sound from the jaw when I open mouth. help.