Took a little too much metamucil at first, my body wasnt used to the big bowl movement, i tore something and i can't heal because of my bowl movements?

Anal tear: You am have a small tear or abrasion at the exit from your anus .Try something soothing like Proctocaine

Anal fissure: It sounds like you caused a split in the skin in the anal area. Most anal fissures will heal within 1-2 weeks but some may not heal quickly and require more aggressive treatment. Usual recommendations include sits baths, stool softeners. If having pain Nupercainal ointment will help. Would continue Metamucil in smaller doses or increase fiber in diet. If not better in 2 wks>>see physician