My periods are always irregular, but this one in particular was very late. For the past few days I've had cramps but not bled and have felt faint and a little n*. I have started some medication this week that can cause stomach problems and I have also had some bad reflux. So today I came on my period, finally. But tonight I am feeling quite n* all of a sudden. I've eaten normally... I am under stress for various reasons I won't bother going in to. I think I know the n* is down to a combination of these things but as per usual I'm getting very anxious sat here in my room :/ I guess I just need a bit of reassurance... I feel so silly having these 'scares' so often. Anyway, can periods cause nausea because of hormone imbalances?