I Am 24, Female. I Have Always Had Digestive Issues,

i am 24, female. i have always had digestive issues, and yesterday i noticed i had a bump around the anal area. today i decided to check what it was, and i am fairly sure it is a skin tag. however, i also found a couple of black spots of the skin around my anus. i really dont know if they've always been there. i know i cant get a diagnosis online, i just want to know if it's something i should call my gi about or if i should look for a dermatologist