Anyone notice a connection between PCS and eating regularly?

When I was younger (twenties) I could go long periods of time without eating and I never had a problem. Now if I do this I will often get really spacey. I always attributed this to aging, but I've asked friends of mine, and they don't seem to have the same issue.

Anyway, I might be drawing a connection where there is none.

This last week though, I've gotten the spacey's a couple of times really bad after I've neglected to eat properly. So bad once I had to lie down, I felt so weird and dizzy. Eating a nutrition bar seemed to help (or it could have just been the lying down and resting). After that, I've been carrying snacks around with me.

There is definitely something going on with me and blood sugar levels, though. Once I start spacing it's hard for me to make decisions or think clearly. It's noticeable enough that my girlfriend can even tell. Eating something snaps me out of it within minutes, and I'm back to my normal witty and brilliant self.

I've attributed this to age and even the onset of diabetes, but never before to my concussion(s). As for diabetes, I'm pretty far removed from what is normally thought of as the diabetes risk group... I exercise religiously, eat healthy, avoid lots of sugar, and am skinny, if anything.