I've recently bought a blood glucose electronic monitoring system. It's the One Touch Ultra Smart. I heard I should invest in one of these and make sure my blood sugar is okay. I have never been actually diagnosed with being pre-diabetic, but I want to monitor it. I probably was pre-diabetic before I recently lost 80+ lbs. Things are much different now with my body, blood pressure, I'm assuming blood glucose levels,etc.
Today I used it for the first time. I skipped breakfast (bad I know, but I was out too late last night

So I ate for the first time around noon, with a light lunch. Then I checked my blood at about 4:00 and I had a glucose reading of 84mg/dL.
I was getting quite hungry so I went and made dinner and decided I would come back to check it again, after eating. If it matters.. I had homemade chicken noodle soup. I made it with whole wheat egg noodles, low sodium broth, etc. The rest is just veggies and chicken. It's pretty healthy. I also had a 1/2 sandwich with whole wheat bread and turkey.
Right after lunch (now at about 5:00) it was 120mg/dL.
I am just getting an idea about blood levels... but I guess why I am posting this is because I am not sure about that spike. It's not too high, but why the spike so much?
I will be checking it again in the morning (fasting check). Also I will be doing random checks, and I'll have to see how it goes.. but I would like to know what you all think of going from 84 to 120... is that normal?
Any insite would be much appreciated!