Scared

I have to go to the dentist this afternoon and i am so not looking forward to it i am really petrified and have been for the last 8 years i used to be fine before that but since havin a bad experience with my previous dentist i have clamed up and everytime i go now i shake get rather hot my previous dentist didnt numb my mouth properly and really hurt me doing a filling even tho i tried to tell him to stop so ever since when i have something touch my mouth at the dentist i think i can feel pain its cemented on my brain so if i survive i will be back later