I Need your personal opinion on a fast metabolism. I eat every two hours of so.

So, every since I was in puberty, I eat every two hours or so. I'm 39 now and male. My height is 5'10" and my weight is about 220. I have a "dad bod". Maybe a max of four hours or so i have to eat but it's more like two. When the hunger hits, it's like a sledgehammer. My body gets weak in the arms and legs. My hands go numb and tingly. I feel burning hot inside but outside my skin is clammy. My hands shake. My legs shake. I can barely stand. I often lack any energy like I want to sleep. I get irritable. I have been tested for diabetes and pre-diabetes at the VA hospital. Both came back negative. You would think if I have a fast metabolism, I would not be as chunky as I am. I should be skinny the way I eat. I spend so much money on food a month (over $500) it's ridiculous. Does anyone have any thoughts on this that I could talk with my doctor about? They are so far unhelpful.