Upper or lower 1st molar crack? pls help

Have severe ear pain,lower jaw pain with swelling under the ear.Went to ENT,regular doctor to check sinus,ear.They gave me antibiotics for ear,sinus infection.it cleared up But ear pain, jaw pain with swelling still there.It's very severe. It is worse while lying down.I have throbbing pain in the upper and lower jaw.first lower molar hurts while biting.the bite is so hard when I close my mouth.That molars hit first & bite feels so hard when I close my mouth.not sensitive to hot,cold. But hurts while biting.Not while chewing food. Dentist took xray,said he couldn't see any infection in any tooth since I already taken antibiotics for sinus infection.What is the problem. The pain and swelling still there.Sometimes it will be sharp pain in the lower molar & in the jaw(under the ear).one Practo dentist said that crack in my upper first molar.my dentist told crack in first lower molar.is it 1st lower molar or 1st  upper molar crack?practo dentist said I have to remove 1st upper molar(not WT)