hello east coast,
                
       Sad to hear about your situation.    To start with I guess you made a mistake of not having travelling insurance. Travel insurance is not expensive at all. You could have  always buy easily online that covers also medical insurance.  . But now i  highly recommend you to check up in US rather than in Nepal. I still hope and believe it is nothing serious. The flight to Nepal can be postponed. But i guess some of other sajha member, particularly the one in medical field can give you a better advice. Good luck.