any clue??

[grace girl]

I've noticed that any meal, particularly lunch or dinner, if I don't eat enough to bolus at least 4 units, I run high. 4 units or more, no problem. This is a fairly consistent pattern that I can't figure out. I don't low carb, just don't really eat a whole lot...it's not that uncommon for me to have 28-32 carbs in meal, and if I don't need a correction I end up bolusing 3.5 units...and run high two hours later and it doesn't come back down to normal at 4 hours, either. As I said, though, if I eat more and shoot more, I'm fine.
Any idea as to why this would be? Would one have different carb ratios based on food consumption?

[xMenace]

This can happen if your basal rate is too low and you are compensating with a high bolus rate. If this were the case, you'd be going low after eating large meals.

Have you tested basal rates?

[grace girl]

This can happen if your basal rate is too low and you are compensating with a high bolus rate. If this were the case, you'd be going low after eating large meals.

Have you tested basal rates?

Not going low after large meals, and testing basals like an insane woman for the past month! Still doing some tweaking, so perhaps I'll find the problem there after all.

[Emm]

Do you bolus for the protein in your meal?
If you use an insulin:carb ratio, have you double checked that?

[Geoff]

Just do a fasting test for 12 hrs. Take your bs just before your normal basal injection at the normal time before you go to sleep. If it is in the good range 90-110, if it is out of range try on another night. When you get up in the morning test again, it should still be in the good range, do not eat anything, just drink plenty of water to keep hydrated, and test every hr up to the 12 hr period.

If you have set your basal at the right dosage by 12 hrs it should still be a round the same level as when you started the night before. If it has gone higher, 120+ then you do not have enough basal. If it as gone lower at this point you have to much.

[xMenace]

I think we may be experiencing this: Morning Madness - Those Darn Phenomenons! Complied by Barb Chafe (http://www.insulin-pumpers.ca/darnphenomenons.html)
The Motor Start Phenomenon
An interesting trend that some people experience has been informally dubbed the
"Motor Start Phenomenon". This is when blood sugars spike sharply following
breakfast, no matter how many or how few carbs are consumed. This phenomenon
tends to be inconsistent, surfacing and then disappearing in the same
individual. Its causes are unclear, but it may be stress and hormone related.
It differs from the dawn phenomenon in that it appears only after food is
eaten. Many people also find that it does not kick in when they sleep in longer
than usual, maybe because they are more relaxed on those days.

To test for the "Motor Start" Phenomenon: Go to sleep and wake up at your usual
time, but skip breakfast. Test consistently to get a fasting morning BG
profile. On another typical day, eat a protein-only breakfast and test BGs
constantly. On a third morning, eat a lower carb breakfast and record your
blood glucose readings. Finally, eat a high carbohydrate breakfast and log your
blood sugars. If you are experiencing the Motor Start phenomenon, you will
likely have high blood sugars on all mornings that you ate any food, except on
the day you fasted.

The best method we have found for dealing with this blood sugar rise is to
administer an extra fixed amount of insulin, usually about 1.5 to 2 units, upon
awakening or before eating breakfast. (It may be necessary to take this insulin
some time before eating to give the insulin a chance to begin working before
breakfast is eaten.) Just remember that as soon as your body's tendency
changes, this extra insulin must be eliminated. Otherwise, it can cause serious
low blood sugars.