Thanks for the comments regarding qi/pseudo-qi
As for my heart rate during karate/kubudo/running, it's within the normal range for my height, weight, age and excerise level.
I have been speaking to my sensei's who do Tai Chi and they've been a little reluctant to talk about qi. However, they've been strongly encouraging me to *take* Tai Chi (I wonder why???
). Guess Tai Chi is something that I'll be adding to my MA toolbox @ some point...
In the meantime, I'll continue doing what I've been doing, enjoy the "buzz" (that's literally what it feels like) that I get while doing MA's & running, welcome the sensation as I feel it beginning, grin my head off when it arrives and bid it farewell as it leaves.
By the way, as a newbie to this forum, I am enjoying the discussions on most of the boards I've looked at.