it turned out that I'd got serious tooth decay problems...at least two teath needing root canal treatment.. it was the result of that I havent had them checked for almost 2 years...out of unreasonable fear of a dental clinic..
guys.. go get your teeth checked on every 6 months basis...it's cheap..and safe.
Oh by the way, here in Korea, the insurerance policy is real awesome..covers everyone and almost everything except some cosmetic things... lol
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