I feel weak, shaky and kinda confused when I don’t eat?

I’ve noticed within the last few weeks that when I don’t eat I feel faint. I get shaky, cold sweat, my heart pounds and I need to sit down. I used to be able to just not eat for awhile or I would skip breakfast and just eat during dinner but now I have to constantly eat every few hours or I will get this way. I... show more I’ve noticed within the last few weeks that when I don’t eat I feel faint. I get shaky, cold sweat, my heart pounds and I need to sit down. I used to be able to just not eat for awhile or I would skip breakfast and just eat during dinner but now I have to constantly eat every few hours or I will get this way. I scheduled a doctors appointment but I want to ask others on what they think? I feel better when I do eat but it’s still hard especially since my anxiety makes everything 10x worse.
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