need urgent help with teeth

hi this is going to be hard to explain but i'll try..

im 17 year's old and everything was going fine till the other day I randomly started feeling my top teeth in my mouth, what I mean by feeling is I did not purposely feel my teeth I literally had no control I just felt them in my mouth like they were all crammed etc (I hadn't eaten for a few days previously due to throwing up whatever I ate)

and now they feel like they could just fall out at any time, they feel as if they are so tight they could just snap out, a few out my bottom teeth feel like this also, I had just been to the dentist about 1-2weeks ago for a check-up and apart from a filling or two nothing else was found.

that is probly hard to understand but it really is tough to explain, thanks in advance.

[Jerome Tsang, DDS]

Seems rather odd that you have a pressure sensation.  Does it occur right after the fillings were done?  Any history of trauma or any incidents that may have affected the teeth at all?  Have you tried flossing inbetween your teeth to see if they have tightened?  Teeth naturally move and shift from time to time but its strange for pressure to buildup in that way from them moving.