I don't know what to do😭

Y'all I'm struggling. Tmi warning I apologize ahead of time. I'm 7 weeks pregnant with my 3rd and it is KICING. MY. ASS. I've been nauseous for the last couple weeks but I was able to start Diclegis yesterday evening. However, since sunday evening, I've been having major diarrhea immediately after eating. Constantly. I have major stomachaches and cramps and rumbles and I just overall feel like crap. I have pretty bad anxiety when it comes to nausea/vomiting/diarrhea and so I will do ANYTHING to avoid it. Well that means i have barely eaten in the last couple weeks. The diclegis seemed to help to I was ready to eat this morning and I ate a little bit and was on the toilet almost immediately. I'm not sure what to do. I'm panicking, I hate feeling like this and i know i need to eat for the sake of my baby but I literally can't. I am unable to force myself to eat because I'm so scared of getting sick. And I just want this diarrhea to end but imodium doesn't seem to touch it. I'm scrambling here. I'm tempted to go to the ER but that would mean finding someone to watch our kids and we have NO family around. My husband HAS to go back to work tomorrow(he's military) and I have NO IDEA what I'm gonna do. I can't take care of them. I can barely walk to the bathroom without almost passing out, let alone care for a 2 year old and 1 year old. I'm freaking out. I don't know what to do. I haven't thrown up yet but I obviously can't keep anything in. I'm not dehydrated, I've been drinking plenty of water and urinating normally, so I'm not really worried about that. But idk what to do. I'm not really sure what I'm looking for here, but I am struggling and I'm worried about my baby. I just can't seem to override my anxiety for the sake of my baby😭

My last two pregnancies were NOTHING like this. I have a huge fear of throwing up/diarrhea and so I'm basically living in a constant state of panic right now😩 my other pregnancies were easy, textbook, no nausea, as easy as could be. But this one has been kicking my ass since the moment those lines turned pink. I don't know what to do😭😩