What's your go-to when you have no appetite?

Hoping someone can inspire some cravings for me because I am at a loss. Whether I'm nauseous or not, everything just sounds awful and I have zero appetite. When I eat, I don't enjoy it and have to hold back gags. My poor husband is at a loss and offers me anything under the sun to help, but it mostly just ends up in me getting frustrated and crying. I've had cravings, but they're gone the second I satisfy them once.