Salty cravings

My partner is a Type 1 diabetic and so we eat pretty healthy. We never eat fast food but I will occasionally ( once ever 2 months maybe) have fast food, like a kids meal or I get sick. Since getting pregnant I constantly crave McDonalds French fries. All I want is to eat salt.

I’ve had terrible morning sickness (throwing up 6+ time a day). My doc put me on anti nausea meds to help. Are these salt cravings bad since I’m struggling with dehydration? I am drinking as much water and Gatorade I can. But the salt need is intense. All I want is salt. Thoughts? Am I alone?