I don't think it's necessarily food-related, unless having no brain fog has made you more able to sense doom.
It's normal for a fear to develop gradually, by the way. Sure, you John Wayne'd it the first time and let your unconscious deal with the event, compartmentalizing it - maybe even using near-denial as an effective coping device for an overall non-threatening isolated event. But the fact that it's happening again might be giving you alarm. Deep inside some part of you absolutely hates this and it's getting harder to ignore it. Maybe.
When I give blood, I pound a pot of coffee first. This blood is going into somebody who's going to need the jolt.
Steak, eggs, potatoes - fruits, nuts, berries and forage. Coconut milk and potent herbs and spices. Tea instead of coffee now and teeny amounts of kelp daily. Let's see how this does! Not really had dairy much, and gut seems better for it.