Generally, I'm euphoric over it. There have been occassions when after a solo, I've actually stopped playing, just to bask in the radiance of what I played, and on occassion have stopped playing altogether for the evening because I've felt that perfection could never be improved upon and there was, in essence, nothing left to play, my having just played it all.
I haven't been dissatisfied with anything I've played for decades and am at the point where if I can play for just 10 minutes a day during a cold snap, I can warm the entire house and save a bundle on heating bills!
If I had a twin, there wouldn't be two happier people on Earth about my soloing.