YEAST INFECTION???

Soooo I accidentally wore dirty underwear on wednesday... ik gross, (pulled out of dirty pile on accident and thought it was clean) that same day i was sweating A LOT and the underwear was kind of tight... 2 days later i had a itching sensation then 3 days later i have a burning sensation and burning while peeing. my labia looks kinda of swollen too... Yeast infection?!!