rin7785

Ok, so last week i got bad stomach pains out of no where. this lasted for 3 days along with constipation. the pains went away but the constipation stayed. i went to the doctor only to have him tell me to take benefiber, and try a laxative if the benefiber didn't work. I waited 2 days then took exlax and was relieved of all constipation problems for 2 days. I am now having troubles again trying to have a bm. I feel like i have to have a bm but my anus feels like it is swollen shut. If i feel inside my anus i can feel feces there, and i have strained and pushed so hard to try to get it out with no success. i also noticed that i had a little skin tag type thing near the opening of my anus now. can someone please tell me what is wrong with me?