Your anus could be wider because of constant bowel movements because of the size of them. Now about the doctor don't they have free clinics in your town, and if they do go to the emergency room or you can look up free clinics, some go according to your income. You may need to see an ENT and let them go down in your stomach to make sure everything is okay.
I had to stop my Beano and just stick to the regular enzymes. I may try the Megahydrin like my friend suggested to me, it's a stronger form of vitamin C, it helped lots of people with their BO and BB but you have to keep taking it, and it's good for pain. Sometimes too much standing causes my legs to hurt at work because I'm on my feet 9 hrs either that or the copper chlorella which I should be taking for TMAU symptoms, after I run out of the regular chlorella but chlorella is suppose to work on the bacteria so I may stick it out along with the activated charcoal,but keep taking your probotics and your antifungals and give it a chance, God bless.