I just need help

This month I had my period late by 1 week I don’t have sex every in every 7 months this period came really bad small cramps and with spotting I only spit in the morning that will be enough to and then I’ll be good to spot again til tomorrow morning my blood was really brown I been sweating so much I had so much cravings today I am not in my period and I woke up with a bad symptom on my vagina I felt like if I had to pee so bad that sensation so I peed and I found out I had that feeling still but the pain got bigger it’s like a burn and when I have sex is with condom and I know it can’t be a bad sex infection what can it be