Thank you, yeah...I'm really going to pay attention next time I experience it (it's infrequent, but not very pleasant LOL) and make sure I can describe it better. Thanks for the warm welcome, and yeah I never smoked (anything) before either (it was edibles before this), so it's been a whole new world for me, and it's been so much fun getting different devices and learning all about this. I still feel kind of "dumb" with questions, but I'm learning the more I read here :-)Hopefully someone will give you a lot more details, but for now...
Hey, Welcome to FC and to vaping flower, etc.!
The temps you are using are nowhere close to combustion, and even at highest temps it would be unusual for any combustion in a Mighty.
If it ever happens, you will absolutely know, unless your current habit alternates vaping with smoking (combusting...)!
I have no idea what that shock-like sensation may be. Again, unusual from a Mighty, they just don't spike like that.