Pregnancy symptoms

So i know everyones pregnancy is different and all that but i just took a test and found out im pregnant. We have our first appointment the end of june. I was cramping a couple weeks ago..just very light cramping (implantation). Ive been having spells where i get a whiff of something and want to puke but it goes away within a couple seconds. Ive had major stomach issues (diarrhea or just excessive pooping). Ive noticed its happening when i eat or drink dairy products. Its never happened before with my last pregnancy or in my life. Can this be the start of being lactose intolerant? If so, how long do you think it will last?