<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, These are all the symptoms I have at the moment: Tingling when I pee,especially after sex, Needing to pee to the point I feel like im going to wee myself, feeling faint and having fainting episodes feeling lethargic and generally unwell dull achy pain in lower abdomen dull achy pain when having sex lower back pain and occasional lower back pain when i breathe in What could this be?I was thinking it might be a UTI but im not sure,because I dont get a sensation when i pee and it doesnt hurt to pass urine Please can you help! Evelyn  <response>: Hi welcome to Chat Doctor forum. It appears that your partners vaginal PH might be acidic, due to some infection hence the irritation while peeing after intercourse, for this both the partners should be treated completely. I advise you to show her to a gynecologist for diagnosis and treatment. The things you have described are symptoms of chronic U.T.I. caused by continuous exposure. All your symptoms suggest some infection or malnutrition. I advise you to consult a physician for diagnosis and treatment, You may need to have C.T.scan of the lower back along with other routine tests for confirmation. Wishing for a quick and complete recovery, and thanks for calling. 