Should I go back to the hospital?🥴

29 weeks 2days .. friday went to l&d for contractions all day. Found out I was at a 2, but my preterm swab came back negative so they sent me home. Saturday just didn’t feel right. Woke up crampy n felt yucky with diarrhea all day. Kept getting bad lightening crotch/ heavy pressure. Woke up at 12:50am to AWFUL cramps, shaking and dropping sweat. Felt like I was gonna vomit. I rang l&d who advised me to call the after hours at my dr or come in. I could barely take on the phone so I thought we’d just go in. I ended to having explosive diarrhea (sorry tmi). I took a warm shower and the shakes stopped but still cramping. Been laying down about an hour after taking a tums and a bottle of water, still mild cramps and nausea.. feel so conflicted with what to do. If it’s just a stomach bug or labor. I don’t want them to just send me back home. Also have my 5 year old asleep at home.