In the honeymoon period some docs like to keep us injecting insulin (even just one unit) throughout. There's some theories (don't know of any proof) that this might extend the honeymoon period. I don't know if your doc has mentioned "the honeymoon" but that sure sounds like what you're doing right now.
And yes I agree 200 isn't so bad.
A low 3 to 4 hours after the meal, might not be obviously the bolus. If it was happening 1 or 2 hours after the meal it would be less ambiguous.
There's also the very real factor that small doses get absorbed more rapidly and a basal of only 3 units will get absorbed a lot more rapidly than the advertised Levemir 24 hour length. You are already splitting it AM/PM I see, maybe the next step is to split it 4 ways that might just be self-defeating because the more ways you split it, the faster it gets absorbed! Like Mickey with all the brooms in Fantasia!
The one unit may even be psychological rather than real :-).
Carb counting and basal setting can be really hard during the honeymoon, because erratic insulin production can dominate any of the other factors and make the math seem pointless. I don't think the math is actually wrong, it's just hard to know in advance whether the pancreas will put out a couple units worth or not on its own and that completely dominates the small changes you'd see from a single unit.
I am personally tending to believing that the problem isn't the bolus, but is the very small doses of Levemir getting absorbed rapidly.
Are you carb counting and adjusting the bolus to the carb intake ?
Sliding scale is an older/ less accurate approach. The basal/bolus approach
with the bolus adjusted for (a) carb count and (b) correction factor (if high or low)
is the preferred approach now.
Also, one thing I did when I was first diagnosed (about a year ago) and needed very little insulin was to get a pen that was capable of half-unit doses. This let me match the dose more closely to the need.
That way, you would have an option besides 1 unit or none.
I am in a very similar situation...I actually only bolus and do no basal. Have you tried that? I have no lows while exercising now which make me VERY happy!
Although the pens are more convenient, if you find that you really need the flexibility to dose in 0.5 unit increments, you might try using vial and disposable syringes in 0.5 unit increments.
Yes, that's the one I was referring to. One click is 0.5 units. Though you will waste 2 units priming it. I didn't care. The cartridges seem to be widely available
i just got a refill of the cartridges from walgreens (for this novojunior pen) many children use these. you can always use a syringe with 1/2 units and just use a vial or the pens (if that's easier to transport) and draw up 1/2 units with a syringe from the pen too.