Sleep is better then a tummy ache

I fell asleep at 10:00.... so now it's 2:41 and I'm wide awake.  What's that about?  I get up and have some milk and it upsets my stomach. So basically I am not the smartest person at 2 in the morning because just the other day I told Dennis that I have noticed when I drink milk it upsets my stomach. Any normal person would then, refrain from drinking milk.  *sigh*  I should have just rolled over and went back to sleep!♡