Temporary problems during pregnancy?

Ma
So does anyone have anything crazy happen to their bodies ONLY during pregnancy?! For me my stomach is super sensitive. If I have anything fatty, stomach ache and the poops (tmi sorry) 
Now I cant drink milk AT ALL!! Its like Ive honestly become lactose intolerant. Totally messes my stomach up. 
Anyone else having crazy weird things go on? Im hoping this goes away after baby comes..