I know its hard to guess what is going on, and without a glucometer its a real long shot.
Here is the situation. I wake up after 8 hours of sleep I eat within the first 30 minutes usually between 8-8:15. I have 4 whole eggs, 1 peice of bacon, 1 slice of toast, and three packets of instant oatmeal. Within 1 hour and 30 minutes of eating I feel dead, weak, flat, I want to go to sleep, just really exhausted. So I am guessing this is blood sugar related.
Maybe there is too high of a insulin spike and I am going hypo in a hour and a half? I thought that oatmeal had a low GI and did give off that much of a insulin response?
I have been doing this for the past week and it happens everytime.
By the way if it helps I am a ectomorph so I need big calories for maintence, hence why it is a large breakfast.