I had jawbone allograft 3 and a half weeks ago. i finished the pain/antibiotic meds 2 weeks ago. now exhausted, nauseous, brain confused, stressed.

From antibiotic: Not sure how long you took the antibiotics. Some of the antibiotics can cause confusion ,nausea ,a feeling of exhaustion etc. Drink pelnty of fluids. Dehydration with difficulty in opening the jaw can also make you to have the above symptoms. If symptoms don't clear in another 2-3 days after improving hydration check with your PCP Some antibiotics cause gastritis.

Be seen: This could be a sign of a localized infection. I would inform your surgeon. Track your temp, if you develop a fever, you need to be seen or at least be put back on antibiotics