Dental issues pregnancy

Happy 22 weeks today!!

I was eating lunch at work and I get done and feel this awful like something was stuck sensation. It gave me a headache, I went to the bathroom with some mouthwash, tooth brush and floss. Didn’t get much relief. I tried looking in there with the flashlight on my phone... can’t see much because it is all the way in the back up top the last tooth. I felt around it felt sharp and like a hole. I have always had bad teeth and I mean bad teeth because as a kid I should of had braces, my teeth are too close together and had no room to grow, my overbite is terrrible. As an adult I have not done my best to make sure I brush twice a day and floss all the time. I can see some cavities etc. at this point now I’m in such pain, I’m nervous about what will happen and I’m nervous: embarrassed to go. I’m hormonal... 😭 I know they see way worse then me but I am self conscious about my smile and my teeth and I just feel stupid at this point. Any encouragement is appreciated.