You're just sort of searching for this 'thing' and sometimes you get it and sometimes you don't. All music is imperfect, but in jazz since you're improvising, at least the way I play, I'm trying to follow my train of thought in a solo.
Hospitals are great places, and you can learn from them, but you don't necessarily need to go in anytime you get the sniffles. And maybe you shouldn't treat pregnancy as a disease.
Insecurity is just something that's there all the time. I've never been crippled by it.

