A regular Advil is 200mg. The usual dose is two pills, so 400mg. If your larger it's common to take three or four pills. Multiply by a dose ever six hours and it's quite easy to get to 3200mg per day.
Fortunately I have no chronic issues, rarely need ibuprofen (in fact I'm paranoid about taking it for muscle aches as I've always felt it must harm muscle development, which seems to be catching traction as a theory), and generally avoid medications altogether, but it seems like if you're taking it, might as well take a dose that will do something.
I am really hoping that it isn't just that you all are like, five years older than I am, and so I have to expect that I am going to just end up in pain a lot soon :/.