Anyone who's laughing and saying he shouldn't have called 911 and shit just don't understand. If it'd happened to you then you'd get it.
I used to have this stuff happen all the time. Once you learn how to tell yourself it's just the weed doing it or get good at calming yourself down then it's easier to avoid.
The worst time it happened was when I swallowed a good quarter of resin before I went to bed. I woke up and couldn't move my arms or anything. I went back to sleep then woke up again all like "ok, was a dream or something.. I'll be ok now." Then I realised it was still there. I couldn't move and shit. All slowed down.
I'd seen this programme that night about these people that got carbon monoxide poisoning from their cooker in their house. They were all crawling around like zombies lol, and had blurred vision and stuff ad almost died. Well, where I was so intensley fucked out of my face I convinced myself this is what I had and I was gonna die (You won't understand unless you've had this yourself) and that I had to call an ambulance sharpish!
Anyway, I knew that would be a mistake so I rang my mum instead. I explained (or tried to) that I was on drugs and was fucked. She came home from work and I was just sitting there laughing constantly. She had a go at me and just told me I should go to bed.
I remember calling my friend on the phone at the peak of the trip to tell him I wouldn't be meeting him in town that day and just not being able to talk. It was like "Yeah..... Ummmmm, I'm fucked man..... Ummm, yeah I can't come meet you.... Cause I'm fucked..... Seriously, sorry..... Ummmm..."
Crazy, crazy shit.
I also had it bad the very first time I got high and was very, very close to drinking the bong water cause I was panicking so much over my "dehydration".. But that's a whole other story
Don't worry about it man, it happens. Don't let it put you off the wonderful 'erb and just learn how to calm yourself down when it happens