I used to go to the gym in the morning but recently started training at night because of my schedule. My intensity has been the same, but now when I go to sleep at night, I can't fall asleep. It's weird, I feel completely wired, like I've drank a load of coffee. When I do fall asleep and wake up in the morning, I feel like I did not have a good nights rest. Then the next night I would completely crash. I tried taking ibuprofen to try to take some of the edge off but it doesn't work. Anybody experience this?