I suffered from anorexia for 1year. i stopped growing&lost my menstrual cycle. i got it back on 1/17/13 i haven't had it since then. is this normal?

Anorexia: No this is not normal. Anorexia is a very serious condition that needs frequent monitoring by a physician. I'd recommend seeing your doctor on a regular basis until your weight and cycles normalize.

Probably not: Anorexia tends to shut down all the signals from the brain to the ovary and as a result you do not get a period. Until the anorexia gets corrected and you obtain a critical height/weight ratio that is specific to your genetics, you probably will continue not to have a period on a regular basis with only a possibility of an occasional bleed.