>>1029547I've never used a pump, so I can't speak to their use.
As far as insulin usage, exercise makes a huuge difference. Taking essentially any Humalog during the day is too much. While touring, my meal/insulin schedule works like this:
Wake up
Take Humalog for breakfast (generally around 1 unit:30 carbs, more if I'm planning on going uphill immediately or similar) and Levemir for the rest of the day.
Start riding, stop to eat frequently while Humalog is still acting.
Eat occasionally throughout the day thereafter. If I've guessed right about the basal dosage this translates to once every 3 hours or so of flat riding. More going up, less going down.
More Humalog for dinner, more or less depending on how hard I feel I worked during the day. Normally between 1:20 and 1:30. Levemir to cover the night, also scaled between 8 and 16 based on how hard I've worked.
I try to stay up for the 3 hours after the dinner dosage to make sure I'm not going to bed with a low. This sometimes means eating afterwards.
Another thing to worry about is the strength of insulin, which decreases as it spends more time in the warm/hot, even with a case designed for the purpose. As time goes on the insulin dosages need to get scaled up, and after refilling prescriptions, I have to be super careful with the potent new stuff.
The first day of long-term exercise makes me much more sensitive to insulin than the subsequent ones. For example, yesterday I rode my bike 27 miles out and 27 miles back, hiking up to Iron Bear to take this photo between (which made for an awesome Thanksgiving, forget friends/family/turkey). I took 5 Humalog 10 Levemir and left 2 hours after breakfast with blood glucose around 150 mg/dL. During the 8 hour day I ate around 250 carbs. This summer I put in comparable hours with less food and more insulin.
You'll have to experiment a lot to get a good understanding of how your body works. A CGM has made a big difference for me.
