I had the same exact problem not too long ago. it was my first fill... my doc filled it way too much to the point where I got sick in the office, then he took a little out and I thought I'd be fine. I got home and I couldn't even tolerate water. Lost a lot of weight in only 3 days.
Definitely go back asap, you could get dehydrated.

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Ms. New York
Banded 5/21/09 by Dr. Medhat Allam
@ Southampton hospital, NY