Why got a dull pain in my bottom left back tooth huh.

Started since ytd. In fact it was a little painful a few days back, but it went off, and then I forgotten abt it. Till it returned..... 

Today seemed to be better, but still hurts when biting.

惨了。。。

我真的很怕。。。

Hope it is just a side effect of the dental checkup on Friday...... And nothing more serious than that....

If it is something serious, the checkup that day should have detected it.......right??

Pls ah... Plss....

不要吓我啊。。。。