Could tooth pain be due to an allergic reaction?

Months ago I started getting severe tooth and gumm pain. I went to the dentist and he said there was nothing wrong so it could be allergies. I usually get horrible headaches along with the tooth pain on the side of my head that the tooth pain is on. Laying down makes it worse and it doesn't seem to go away all day unless I take advil. Could it really be an allergic reaction? Has anyone had these kind of symptoms due to allergies? Any help would be appreciated.

Thanks

OH YES!!!!  My gums and teeth hurt when I'm having an allergic reaction to something!  Can you tie it to something you're eating right before it happens?  Or a room you're in that may contain molds or gases?  Oh boy, do I ever know what you're talking about...I'm allergic to anything that is not 100% natural.  Most of all preservatives, coloring, gluten, and fruit.  The first thing that usually happens is my gums and teeth start to hurt really bad...then the migraine comes!  Nothing touches the pain except for ALOT of Ibuprophen.  I get my ibuprophen from Walgreens...they make a color free, dye free product.

All in all, try to pinpoint what you're doing right before this happens... then change the activity and see if it goes away!

Good luck!

Shelley