Gluc level great 2-4 hours after food (78-90 usually), but rises after more time elapses...up to 110 (upon waking up). what??? why? is this a prob?

Depends: Hi. The only standard defined values are fasting, a standard time after a fixed glucose challenge (75 grams, 2 hours; variations in pregnancy), and a non-fasting glucose >/= 200. If those 110's are fasting, then that's abnormal. And don't forget, for diagnostics, serum glucose is used, not finger-stick glucose (capillary blood). So it may or may not be a problem, depending on whether it's fasting