... But that much of a difference?

Fellin' like such an imposter right now; no, not that silly game.

Insulin:Carb ration was about 1:6 about 3 weeks ago. Been doing this Couch to 5K for 3 weeks. Unless I'm trying to consume 25+ carbs in a pretty high GI food then my basal (& I'll assume natural insulin production) takes care of it. That sort of meal would have required at least 4u NovoRapid.

That's such a massive drop in bolus requirement, 0r a massive increase in insulin sensitivity; whichever way you want to look at it.

I knew physical exercise would make a difference, but that much of a difference? & why has my basal rate not changed? I was on 12u Levemir and am still on 12u.