Last year around May I got severe uti and bladder cystitis. Since then sometimes my vaginal walls used to burn but it got resolved. Its been 5 months I didn't feel that way but now again my vaginal walls are burning especially whenever I catch cold or sneeze. Last sexual intercourse was 2 years back after that didn't have intercourse. Also, 5 months back I got a transvaginal ultrasound where the doctor checked everything is fine. I have not had sex after that. My vagina also pains when I put pressure and sit leaning forward please help