Always Hungry?

So I have ARFID (combination type) and always seem to be hungry. Now this alone wouldn’t be surprising because a lot of people with ARFID avoid eating frequently. Sometimes I do that, but often I will have a full meal and still be starving. I add more protein and it does nothing. This is getting really expensive because it seems like I have to eat way more than my family members but also I can only eat very specific things. Has anyone else experienced this?