Mexico Food is Kicking My Ass,....literally

Okay so my husband Pierce and I are in ***** Mita, Mexico this week for Christmas with his family. I am about a month out now, still brought protein with me but I am not eating solid foods.  I have had the worst diarrhea since I got here, I am pooping atleast 2-4 times a day.  At first its seems like a normal poop but ends up being pee out of my butt.  I know this is graphic and all but, we are honest here right.  I dont know if its the spices, or what and it doesnt seem to matter what I eat.  Ive had chicken and tuna so far, we have only been  here since Saturday.  Can I take pepto or does anyone have any similar issues and can offer remedies that have worked for them?  I promise I am not drinking the water, so thats not it.  I def plan to call my doc when I get back just to tell her about it. 

Thanks