hello everyone.. I'm filing for my green card through approval asylum, and I'm really confused about medical check up. Do we have to go to a immigration certified doctor or to a government hospital and check up our health?? and do we have to do that before filing or they send us to a certain doctor? please help me with reasonable answers. I would be really grateful...

Dude, you are filing for a green card and you expect people to reply to a thread titled "urgent help". Who do you think we are? Mother Teresa? I am too jealous of you to even read your whole question.  I read "I am filing for green card" and then stopped. People who are filing for green card should be able to afford a lawyer (I know that doesn't make much logical sense, but I am too jelous ). Good luck to you mate (not)

Edit: Evidently, there are people who are way nicer than me. Good for them!!

Yes, you have to visit to the immigration certified doctors. If you google it, or go to USCIS web site, they will provide you a list of USCIS certified doctors in your area.

Good luck.