Lost, helpless, overwhelmed

I'm sure I can't be the only one feeling this way. This is my 3rd pregnancy and I'm just feeling like I'm just done with the world, being a mom, living life. Now I would NEVER harm myself, I just feel like a bad mom. I'm throwing up all the time, I'm just plain exhausted and just want to sleep... my house is a mess.. I had my MIL take my little one today so I can just sleep but I just don't feel like I'm the only one who feels this way sometimes... I'm hungry and thirsty but afraid to eat or drink because I don't wanna throw up... please tell me these feelings are normal... I just don't know what to do anymore 😢