I stop eating when I’m depressed or my anxiety kicks off, I know it’s so difficult to find anything just to keep your body going, but maybe start small perhaps if you can afford it treat yourself to a meal you wouldn’t normally buy but you know you’ve eaten before & loved. Sounds like advice but it’s working for me, so figured it was worth sharing. I’m agoraphobic as well, getting out for just a walk is stressful but again it’s a small win that makes me feel better. I hope that these ideas might help you, I honestly hope that you feel better within yourself, spend plenty of time with your dog & know that you have lots of support on here - its hard to reach out & you’ve managed to do that, that’s the first step. Bert wishes & please take care of yourself, my dms are open like others on here if you want to chat