It truly sounds like the flu....but, I would do
as the doctor recommended, and try the
ibuprofen.
Ibuprofen is
an anti-inflammatory, which means it will not only help with discomfort, but it helps reduce any swelling that may be causing discomfort. If you symptoms don't improve, or get worse, you should at least call your physician and let him know. He may want to see you again, and run further tests for a more specific diagnosis.
Hope you feel better soon!