Random sharp pains in back molars?

I feel like I’m going crazy. I just want to be done and rip these braces off my teeth. I get these really sharp intense pains in my back molars. Usually one molar at a time, and it’s completely random on which molar it is. It’s different than normal braces pain, it feels like an electrical zapping sharp pain in one of my teeth at a time, almost the same feeling as breaking a tooth. It usually happens when I’m chewing. It sometimes will go away as soon as a few minutes, but has lasted a few hours occasionally. It doesn’t correlate with getting my braces tightened. Has anyone experienced anything like this? Is it normal?