That sounds absolutely horrendous!! Think I'd find another dentist for the future if I was you. Not surprised you're feeling so rough...... I would think it's going to take a few more days to feel a bit better. I'd suggest contacting the dentist or your gp and getting some really strong painkillers that'll get you through the next few days. On the plus side..... you'll certainly lose a bit of weight..... assuming you want to that is!

Geoff