I’m 19 and I have secondary amenorrhea from anorexia (recovering and getting help) but I haven’t gained weight yet or changed my eating much but all of a sudden I got a period after not having one since June this year. Can I really just suddenly get my periods back irrespective of eating, weight and exercise because I’ve never had them at this low a weight before? I am currently 45.6kg and 168cm tall. I know that what looks like “periods” can mean a whole lot of other things. Is it possible to have fake periods during amenorrhea? But isn’t the pill the only thing that causes fake periods?