Have you been checked for bacterial infection? You can buy an over the counter kit called a UTI (for urinary tract infection) kit at the drugstore which can indicate the presence of bacteria when used correctly. Chronic candida can also cause the symptoms you describe. If you have taken an antibiotic and not restored your natural balance of acidophilus you should eat plain yogurt or take acidophilus and bifida capsules. Sugar makes the candida grow, so cut all sugar till you get better.