what does this mean

Iyana

we've been trying to conceive since back in January when we had our miscarriage I haven't had my menstrual cycle since January 25th. my cycle has always been strange it would disappear 3 months at a time and then come back out of nowhere a few years later it disappeared the doctor ran many test but there was nothing wrong puzzled by it they said that's just how my body is does anyone else have this problem?