I have asthma too, and I vape pretty much constantly. I do have to be very wary of high-VG eliquids, they make me feel like I've got glue AND a hairball in my lungs, but otherwise I do ok. My own doctor, when I saw him in January, was very encouraging about trying e-cigs to try and finally quit my very light smoking habit, and wished me good luck.
And quite beside being able to breathe, and wake up without sounding like a water pipe, I've got my high notes back! I can scream right along with Robert Plant on anything!
Andria
Are you saying if I vape long enough I can sing like Steve Perry???
Awesome! I need to go find a big stick. I won't be able to keep the ladies off from me.