Pls help. advice needed.

[Du_deleted]

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.
I feel some throbbing pain in the upper and lower jaw. It's exactly under the ear and in front of the ear. What could be the reason?
Is it something related to my 1st molar crack or sensitivity? My Endo said I might have a minor crack and more sensitivity in that tooth#30. But he said that will not give any swelling in the jaw.

What could be the issue. I am taking ibprufen for pain and swelling. I was taking indomethacin for a week earlier which was prescribed by urgent care.

But the pain and swelling didn't reduce at all. It's constant from day 1. Any thoughts anyone? Please help.

 

[MattKW]

If the endodontist checked the vitality of your teeth with a cold spray, and they all reacted within normal limits, then it's not a dental infection.

 

[Du_deleted]

If the endodontist checked the vitality of your teeth with a cold spray, and they all reacted within normal limits, then it's not a dental infection.

Thank you doctor.
Then it could be my sinus issue or any other glands issue or jaw issue?
How do I proceed further for diagnosis? I have upper and lower jaw pain and swelling. I see little swelling in the upper jaw today. Do I need to see my GP again?