So nauseous I could cry

It’s allllllll dayyyyy and it gets worse at night. Literally nothing works - ginger ale, water, b6 vitamin, take prenatals at night or not taking prenatals at all, eating, not eating, aversions to everything- I can’t get off the couch. I feel miserable and just cry. When I had my son, I had zero symptoms and felt amazing and this is just so polar opposite - what else can I do?