Hoping you can tell me, is glucose level of 122 high?

Depends on meal: Your glu after a meal varies with what you ate, how fast, the speed of your GI tract, etc. It is hard to precisely say whether your post meal glu are too high. If you are testing your sugars because you have diabetes, or are worried about diabetes, best to check fasting and pre-meal, and also follow your a1c. Normal fasting glu is 100 or less. Diabetes is 126 or more. "impaired" is in between.

Depends: Normal 65-105 when drawn out of a vein while fasting. Various authorities have different "normal" levels. There are, however, no exact cut-offs, it's all a continuium. Finger sticks are not accurate enough. Two hour post meal should be less than 130-140, and any glucose >200 at any time suggests diabetes. An a1c >6% is also suggestive and needs further evaluation. See diabetes.Org for more into.