I know this is gross but for the past two weeks I have had stomach pains nausea and diarrhea I get morning sickness also... when I was a kid I was lactose intolerant but i grew out of it is it possible for it to come back it seems that when I have dairy it gets worst so I stopped eating dairy for two days to test it out the symptoms weakened but I was still nausous and had mild diarrhea I'm only a teen I had to miss school any ideas of what's going on my idea is that my lactose intolerance came back but I don't know I that's even possible... And no I'm not pregnant lol