I’m 17 weeks pregnant and since last week on and off I been having a weird diarrhea. Since we ate a fish cocktail . I get chills and goosebumps and need to poop. What can I take to stop it is so annoying sorry tmi but I feel like I’m getting a rash . Every time I drink a lot of water bc I feel my lips dry I have to go and is like I have to go a lot and is barely . My lower back hurts too .