First of all, I feel really bad for you, being left alone and in this condition. Have you spoken with your mother? Can you reach her? If so, tell her you're situation, and tell her you need to go to either the doctor or the hospital... If she can't get excused from her jury duty, either ask her who you can call to get a ride, or ask her if you can call the doctor yourself to see if they can help you get transportation. If necessary you may even need to call an ambulance, but a taxi ought to do it.
In any case, please don't try to diagnose yourself, and please don't rely on anyone's diagnosis from here or anyone online. You NEED to see a professional!
(matter of fact, where are you? If you're within an hour of me, I'll come take you to your doctor!)