laptop keyboard keys problem

[MacDonald]

I have being this problem with my keyboard keys and this only occurs when im playing Arma 3?

whenever i play the game the control,shift and alt keys seem to only work in the toggle function as if they are stuck but not.

i have cleaned the keys thoroughly as do not stick down when pushed.

also my menu keeps popping up without me touching the escape key.

i posted this in the hardware section and got no response i hope this might get some answers as it is stopping me being able to play the game properly.