Suggest domain name for my site.

Hi my name is Dena Aldwin.

I am planning to make a website related to health. Were all can get answers related to health queries. And also need a suitable domain related to health. Can anybody suggest me where can I buy domain, and not too expensive also, I came across one domain Bewell. Hope so someone can help me out of this. Please contact dena@webplore.com.

Regards,
Dena Aldwin