I have had a lot of head/ nasal congestion for a week. now everytime i bite down i hear a balloon or drum tapping sound. why? what should i take?

Fluid in ear: Those symptoms suggest you have fluid in the ear or sinuses or both. It's a common complication of a cold. If you're otherwise healthy and not having high fevers, you can try over-the-counter decongestants for a few days to see if it clears. If not, it's sometimes helped with antibiotics. I'd seek help right away, though, if you get a fever over 100, or you have loss of hearing.