Raw and painful clit

I noticed for the last few days my clit has been stinging like it's very sensitive and sometimes agrovated and so I get very uncomfortable stimulation from just walking or standing funny.

I took a mirror down there and noticed the hood is very white and yellow and I usually have a very natural pink hood. When I pulled it back I noticed also that there was a pin pick sized white spec on it and I think those two combined are causing my pain.

A few days ago and today it been this burning pain and yesterday I swear my clit was the sized of the tip of my pointer finger it was so swollen but only lasted an hour.

Defiantly have an infection or something?

I had sex about a week ago...