What Causes Diarrhea, Numbness In Legs And Ringing In Ears?

what causes diaria every earl morning for a few months and then numbness down the leg and hearing loss with ringing in the ears lumps in the shoulder blades? please help. it hurts where underwear touches skin. myself and my son are experiencing these things, we were exposed to raw leaking sewage at campground in southern Colorado and found kissing bugs in rv have been sick for almost 3 yrs I have to do an enema almost dailey or cant stand it. have had several stool samples and blood taken, but they cant find it