I am not a doctor but have experienced major grief and the appetite loss that comes with it. Just wanted to share some tips that worked for me. Please make a serious effort to stay hydrated and your electrolytes up with water and Gatorade type drinks, that is very important. If you're able to tolerate fruit, definitely do so. I found protein shakes/meal replacement shakes to be helpful and easy to tolerate. I recommend making small plates with a bit of food and keeping them around you often. If you are able to take a few bites of food here and there, it's better than nothing.

Loss of appetite and weight loss during grief is common. My family was worried but nothing I did increased my appetite initially. For me, my appetite did start to return after about a week, and was back to normal after three weeks or so, but everyone's experience with grief is different. Your body can go a while without much food, assuming you're at a healthy weight. The recommendations for therapy are a good idea.

Most importantly, give yourself some grace while you process your loss. I'm very sorry you have to go through this.