Having trouble making a bowel movement.

I've had an issue since I was about 6. Going number two was the worst for me. I've been getting the hang of it seeing as how I'm now 17, but I do get constipated sometimes. This is the sixth day without making a bowel movement properly. I've tried suppositories but they only made my stomach hurt and the only thing I pooped out was excess suppository. Yesterday I decided to look up any other ways to get it out, I decided to fish in there but couldn't find anything for about ten minutes I tried again and noticed dry hard stool that wouldn't really move and what seems like skin or a hemorrhoid keeping anything else of getting out. There is an end to my anal cavity where if I go to the side I can feel hard stool. I was able to get atleast eight pebble like sized stools out within yesterday and today. I'm now doing miralax, but so far no change in my stool yet. Could I get an answer? I'd like to know if this is normal? I also have IBS im sure because it's hereditary in my family. see a doc?