Bad Almond Milk?

I'm down 5 pounds but I'm not sure it is all the diet!  Yesterday I made a drink called the "Shrinker" and it has almond milk.  My almond milk has been open and in the fridge for awhile, the date was still good but I think it might have been bad.  It wasn't long after drinking it that I became ill.  Lost my lunch and then had dry heaves for awhile after that.  Didn't eat dinner because I was still feeling queasy.  Felt okay this morning and had some zero Greek yogurt with added blueberries and some oats.  Very yummy.  Then I wasn't convinced the almond milk was really bad so I made a fat stripping frappe.  I knew the yogurt wouldn't keep me full until lunch or a snack (need to eat every 3 hours).  Well, two things - first I put too much stevia in the frappe so I couldn't stand how sweet it was and the after taste.  Second, I started feeling nauseous before I could get it down.  Threw away the almond milk.  I have more in the freezer but I'm going to take a few days break from almond milk.  I hate being sick and I usually break tiny blood vessels in my face, yesterday was no exception.

Going to keep going with the diet.  Bill is doing well with it so far.  He stopped complaining anyway!