About a month ago I went to the Dentist and had 2 impacted wisdom teeth surgically removed. I believed I was completely healed until about 2 days ago when I noticed the inside of my cheek was constantly hurting. Like something was irritating it. I attempted checking it out in the mirror, but couldn't see anything. Mostly because the location is inside the top right side of my cheek. So, I decided to feel around with my finger and came across this VERY sharp thing sticking out of my gums. It's located just a little bit in front of where one wisdom tooth was removed. However it's NOT located in the actual site of the removal. Is this normal?? I've googled it quite a bit and I've come across bone and tooth fragments and noticed they're mostly related to Oral Surgery. Has anyone experienced this? What can I do? It's very painful and it's really irritating. Any way to sooth it?

Thanks for any responses!!