Eating your calories

I need to know more about your approach.

• What's your calorie budget currently set to and what is your goal (lose, gain, maintain)?
• What are your stats (height, current weight, age, activity level)?
• Are you intentionally trying to not eat during the day (doing intermittent fasting or similar), or are you just not hungry?

Not everybody's brain is wired up exactly the same way. If you're just not hungry and legitimately forget to eat until you get hypoglycemic and feel sick/sad/agitated/whatever, that's a legit thing that happens to some people. Heck, I married one of them. It is 100% valid to set reminder alarms on your phone or whatever reminding yourself to eat periodically throughout the day, if that's what you need to do.

Keeping easy-to-grab snacks near to hand can also help. Maybe you can prep some snacks that fit your macro goals - apples or other fruit, peanut butter, carrot sticks and hummus, whatever. For my husband, when he forgets to eat, that can often manifest as executive dysfunction - he can't focus on a task long enough to assemble and eat a sandwich or something like that. So, he needs to keep foods in the house that both appeal to him and take minimal coordination to make edible. For him, that's instant mac and cheese cups. (At some point, I hope to convert him to the way of the vegetable, but for now, it's more important that he eat anything at all.)

no one got to the point of needing to lose weight by not eating.

plenty of ways to add in calories without adding in actual food or bulk. from extra butter or oil in dishes to salad dressing (regular/higher fat instead of lower calorie options), adding nuts or seeds to salads or meals, adding a higher calorie snack during the day, etc.