What's going on with me?

Megan
So I'll start off with, I'm 20 years old and me and my husband are trying to conceive. Lately my body has been acting weirdly. I've been trying to get pregnant for 6 months. I have acid reflux disease but lately it's been really bugging me as well as my Breast have been extremely sensitive. Like I can't touch them without being in pain. It kinda burns a little when my nipples are touched. I've been wanting cream cheese SO BAD!!! Every time I eat cream cheese I can't stop. As well as I've been either constipated or having diarrhea. My period isn't for another 6-8 days. But I'm just really confused by all of this. If anyone has any idea what this is that would be awesome.