Was this on an empty stomach(fasting)?

I think you will find it easier to follow a dietitians advice
on how to keep your blood sugar in range.

Also a HbA1C test every 3-4 months for a couple of times, will show long range trends occur for you.

What does your doctor say?

There are times when blood sugar normally will be higher than other times. However when out of range, that is when concern begins.

There are "sugars" in everything. What you want to avoid are
high glycemic sugars. Even then a little of these is permissible. Also you will want to avoid high fructose corn syrup. This is even in ketchup!

Here is a site that will tell you the glycemic index of common foods:
http://www.glycemicindex.com/

Typically you will want to be below the 50% range. But if you are not a diabetic yet, you can have some in the upper range more than a diabetic can.

For example look what can happen with the simple potato:
type in potato to that search and see how the GI changes.