@Sickofthisshit84
Ah, I missed that you were already seeing someone; that's good. Yes, it is important that the "get" you, as it can be such a struggle on all levels so see someone and get along with them.
Also so so good that you Dr has at least some interest - but he is so wrong with the 600 cals..... Most humans need a certain no. of calories (and nutrients) to have a functioning brain, let alone anything else - regardless of being somewhat immobile.
That is literally starvation.
One of the first things I was given to read when I started with the ED service - was the Minnesota Starvation Experiment (I have no idea why though) - and even the participants in that were on over 1000 calories per day. And it did have long-term consequences.
One thing that has always struck me is how easily the calories can rack up in unhealthy foods, and yet how much you "can" (bad word) eat when eating healthy foods - so as PP said earlier, lots and lots of veggies would come in low in the calories intake. But again, I do not think it's the thing to do. For you, or for anyone.
The Dr's view seems very simplistic - much along the lines of Eat Less Move More.
If only it could be so simple - which of course, it is not for you.
On a practical basis, one thing that I believe almost literally saved my life, was to start using a digital pressure cooker with it's timer and keep warm facilities.
From someone who was barely eating (and yet not losing weight), I did start to make actual meals with fresh and frozen vegetables, and meat substitutes. I am always learning and experimenting - but do go in fits starts due to, like you, intermittent fear of food - and only least night made scrambled eggs - which came out the best ever (just using the saute, no pressure involved).
Oh, don't get me started on Receptionists; I nearly banned myself from here due to a thread on that very subject!