my husband had a bad accident a few years ago - long story short, he was thrown from his motorcycle & landed on his head & punctured both lungs.

he had 3 or 4 occasions when he was up & about again where he would smoke, start to cough & lose all his vision - went completely blind for a minute or two.
needless to say, it was scared the crap out of him. we still don't know exactly what happened, but have to guess it was neurological.

yours sounds much worse - if i were you, i'd take a long break from smoking anything & give up the red bulls permanently.
maybe after a year of taking good care of yourself (if the docs don't find an actual problem) try a joint again - but don't mix it with cigarettes & red bull so you know it's the joint if you have the same reaction.

good luck - i'd feel stressed too