I feel a weird pressure on my anus, more so like its swollen, I'm only 19 & I'm not sexually active, also I'm pretty sure its not hemorrhoids because I'm not constipated & I don't bleed when I poop, it bothers me when I sit, for a couple weeks I experienced fissures because I was pooping like three times a day & whipping so much made then skin raw, but now it feels like a big discomfort, what could it be ?