i used to get that a lot when i was between 6 and 10 years old. i'd wake up, or at least thought i had woken up, in the middle of the night, unable to mover or breathe or call out, i would be like totaly panniced on top of it and scared shitless i was going to die because i couldn't breathe. but it wasn't like asthma or allergies or anything. it never happened in the day time when i was fully awaike. it didn't have and problems of shortness of breath or anything like that when i was awaike, just in the middle of the night. but anyway when i entered puberty it went away. it went away gradualy while i was entering puberty and by the time i was 10 1/2 or 11 or so it was completely gone. but before that between i was when i was 5 1/2 or 6 and when i was arround 10 1/2 or so, it used to happen several times a month, sometimes on successive nights and even sometimes more then once the same night. i WAS paranoid of my parents and i've always been prone to anxiety so that may also have had something to do with it. =^^= .../\...
Thats odd that it went away over time for you. Did you have any audio or visual hallusinations?: like lepricons or sheep men? heh