This is very normal, I previously did IP in 2011 and never got the "burst" of energy others spoke of and I am not a great sleeper to begin with and I was even less of of good sleeper on IP, as soon as I phased off it got better. The other common thing is constipation, never had it before IP and didn't after phasing, so don't worry, these are common side effects for some. others have no trouble. good luck