somekind of hit and i feel very different

[MK911]

Sometimes when i am going into trance (usually for lucid dream not for astralprojection) i experience somekind of hit and i feel very different. After that i feel no sleep at all and cant get sleep for a while (at least cant project after that), like insomnia. This feeling is like being very drunk and then getting sober with one second  [xx(]

Is it that barrier between astralplane. I never had thatkind of broblem while projecting but i first experienced it two months ago.