I have a infection in my gums ive egnored it

Patient: I have a infection in my gums ive egnored it for 1 1/2 weeks past three days ive been feeling sick, dizzy, my body aches, week, ive passed out a couple of times and my chest hurts. I dont know if its irelivant to the infection but i have a phobia of the dentist so i wont go. Should i go to my GP or leave it my symptoms are getting worse and my painkillers dont work. What should i do?

Doctor: