i frequently get mouth ulcers twice a month, last year i have had a foot ulcer, i have had mrsa, i have had mono, i have herpes, and now currently i have a ulcer in my rectem which is making me **** out blood, i have had gay oral sex and anal unprotected with hiv- person. i have all these symptoms, do i need testing? im 98% the person is hiv-... thanks and what do you think is causing this **** ???