does anyone have or ever had an anal fissure??

(I’m 5 weeks pregnant) So for about a year now I’ve had this cut inside my anus, at first I thought maybe hemmoroids, dr put me on fiber , never actually looked at it, & it never really worked. I started taking hem did pills I got off amazon a few months ago because I was bleeding pretty bad down there when I used the bathroom. I quit taking them, and I haven’t bled like that, but every time I go to the bathroom it rips right back open. I’m not sure if this is something to worry about??