I have profound bilateral numbness in feet and lower buttocs after epidural anesthesia. What do I do?

Talk to MD. The local anesthetics can linger for a while after the operation. However, if the symptoms remain to this degree you need to talk to your anesthesiologist. If they are not available consider making a visit to the er.
Contact the anesthes. Contact the doctor that gave you the anesthesia.
Depends. How long has it been since your injection? If it has been within 24 hours it should not be a problem. If longer then contact the doctor who administered the injection.