are you US ctizen? else what is your status in US?
Do you need to do the midical checkup?
Since it is too long, you can make a phone call to the visa section of the embassy and inquire off.
My mother has her green card and going for citizenship test son and I have a temporary one in the processing of getting a full one as well. According to the website people who have lived in the states and not left the country in more then 6 months do not need a medical checkup. I tried calling the embassy but for reasons unknown they have no live people on the phone and say for any question inquires you must go to the embassy yourself.