Getting anxiety while trying to eat

Hey guys, so I believe I have ARFID(have a doctor's appointment tomorrow to get properly diagnosed) but recently I've been having this problem where while cooking or getting food prepared I'll start getting anxious. The anxiety builds up even until I actually start eating. This sucks, and it's been really hard to eat food at all because I'm so anxious that I'm losing my appetite. And because I'm losing my appetite it's so much easier to feel like gagging while eating which just worsens my anxiety. What can I do about this because I'm getting anxious even about foods that I should enjoy. Any suggestions would be greatly appreciated.