I come from China.

[xoxoxoBruce]

I wonder if useing Syc for a reference is the best way to establish your validity?

one can always hear me chewing. I have to try really hard to hide the noise. Do you guys chew with your teeth at all?

Sure, with whatever teeth you have. Everyone can hear themselves chew. Do other people hear you chew?

It was tradition to not "waste" any money.

You can't really "waste" money because it's yours to do what you want with it. You choose where it goes and you reap the benefits or suffer the consequences. Of course if you have dependents, that's another matter. Remember love and money are not for keeping.

Do people go see doctor/medical professional whenever they feel uncomfortable, or only when there's something serious?

I think that depends on the level of medical coverage you have. Most people self diagnose to some degree. If I think I know what the cause is and I don't think it's going to get worse, I tough it out. Every one has different tolerance levels and resources.