Connie,
Well, Singapore is a heck of a long way from the U.S. sunny south!!!
I wish I knew a doctor in the country you are in. Singapore isn't small by any means.
http://www.moh.gov.sg/mohcorp/hcservices.aspx?id=7820
At least you can search for a doctor!
Well, I hope you can find someone to help you. Or invest in a plane ticket/trip to the sunny south in the U.S.! Not that a trip would be advised in your condition. I hate that you are suffering so.

Annie