Insomnia wasn't what I called it because I was sleeping and getting rest, but I did wake frequently and some days woke by 5am and was up for the day, but pretty rested. I got very very busy in the beginning(my wife loved it). lots of energy. The dreams are definitely freaky as well if you are experiencing those too. But it all starts to level off after a couple of weeks. Don't worry about it. Its a normal thing from the added oxygen in your bloodstream, or the oxygen that should have been there to begin with actually.
keep up the good work>
dalooosh