 [ Symptoms ] why am i not menstruating  i am 19 years old and i have not had a period in 6 months i can 100 guarantee i am not pregnant i am not overweight i do not exercise really intensely and i do not really have anything to seriously stress about i moved back in january but i have had a period since then so i do not think stress from that is the problem i have chronic constipation which may or may not be ibs could that be what is causing this i want to make sure before i go get looked at and told that is what it is [ Disease ] hi i think your find its your ibs affecting your hormones and this then upsets your periods or stops them like yours there is lots of info going the other way but not much but i think your find i am on the right trail by writing this but i will come back to you soon good luick