Last July, on the 21st, I had move sugar than usual (waffle with whip cream, a slice of cake, etc.) within 8 hours of each other and the next day I felt light headed, weak, my face turned ghostly white, and got tunnel vision at work and passed out before waking up in the freezer and the ambulance came. I thought it could have just been a heat flash, due to not being able to eat while at work for 10 hours, heat from the grills, and the air conditioning not working. So a few months went by and on October 16th, I did the same thing again. I ate a bunch of sweets, more than I usually do, and the next day I felt the same way I did in the summer (weak, light headed, and tunnel vision) but I didn't pass out and just sat down and drank water and it went away within a few minutes. That's when I first started to think it could be linked to the sugar I had ate the day before. Then on Friday, I ate tons of sugar (a few brownies, 2 bowls of cinnamon cereal, a few snacks then and there, but still more than usual). Then last night, after seeing The Cabin In The Woods, the same thing happened and I had to sit down for a while and drink water.
Do you think this could be diabetes related? Both of my grandfathers have type 2 diabetes and I heard it skips so I wouldn't be surprised if I have problems with it. I've already scheduled an appointment to get my blood tested for this week.
Edit: Also, i'm 5'10'', 150 pounds, I run every day and play baseball, so I doubt it's weight related. If anything it's probably genetics, but i'll found out Tuesday when I talk to my doctor.