A coma like state which may alternate with periods of agitation is very likely to be diagnosed as comatose schizophrenia.
Schizophrenia can be a hard disease to diagnose and for that reason, the comatose subtype can be ever harder to diagnose sometimes.
Menstruation is the process in which the uterus sheds blood and tissue through the vagina. This is natural and healthy in girls and women of reproductive age. Western communities call this a period.
D. Smallpox is your answer