bad panic attack

woke up from a good night sleep. it was 3am in moring and woke up with the thought i was dieng feeling, cold, head aches, cant seem to breath or catch my breath. was doing my breathing exercise but no luck. took my blood presure it was kind of high for the fact i was sleeping, my orgen was at 99 percent.  got up took a clonapin and anti acid pill, went to reclinner and covered up in a blanket and and fell asleep. got up about 815 am. the thought of it was so tearifing that i thought i was having a bad panic attack and would of died. but thank GOD i got my panic attack under control.  it was not a heart attack for ir it was i would of been died already. my heart dr passed me with flying colors. i hope this will never happen again for it is a not a great thing to have.    i was thinking maybe it could of been the pizza and pop or soda i had before bed time.  so know i am going to watch what i eat before bed time.