HELP !!

Diamond

I had sex about a week ago with a condom. The day after I have this discomfort on the outside of my vagina. It’s still here. It doesn’t hurt as bad as before but it’s still here. (I am not allergic to condoms but I think the pack might’ve been holding water from being left in the rain) anyways. It doesn’t burn when I pee or have sex. It really just burns when walking or direct pressure. Is it possible I have a std ??