For Hemorrhoids

I'm Only 25, Which Seems Awfully Young, Considering That For Several Years Now I've Had An On-again, Off-again Dull Pain During And After Defecation. I've Assumed It To Be Internal Hemorrhoids, So I've Started Squatting To Poop And That Helps A Lot. But Still The Pain Flares Up Every Now And Again. If They Really Are Hemorrhoids, Why Don't They Go Away?? They Actually Started Not Too Long After I Started Experimenting With Anal Sex, Could That Have Anything To Do With It?