Yesterday, i drank a can of red bull in the afternoon, and at midnight like maybe between 3:00-5:00 in the morning i had a nightmare and when i woke up, i couldn't stand up perfectly. and for a moment i though i was paralyzed. why did that happen2me?

I am not sure of the details, how did not stand up, if not perfectly?

Doubt that Red Bull is the culprit. Sounds like the nitemare provoked the secondary issues. Since this came sporadically, would not worry, unless future similar episodes occur. If this becomes regular, would certainly consider a sleep study. For now, chock it up to a bad dream which could occur to anybody.