Fake Hyperventilating/panic attack and fake fainting?

Hey, for this acting project I have to faint and have panic attack. I was just wondering what's the best method to fake a panic attack and fake fainting that would still look realistic. I heard hyperventilating can induce a panic attack, but II'm not sure if you can force yourself to hyperventilate and I don't want to do anything that could like really hurt me or something.

All opinions and thoughts are welcome

You should research the subjects to get a feel for how you need to act.

Panic Disorder Symptoms:
http://www.webmd.com/anxiety-panic/guide...

Hyperventilation Symptoms:
http://www.webmd.com/a-to-z-guides/hyper...

Good luck!

We used to have this trick to scare Mom. First clear the area of anything you might fall into. Second squat, knees out, no sitting and hold your arms stretched out. Third breath in & out real fast and deep 27 times. Fourth stand up fast and put your thumb in your mouth (like if you were to suck on it) and blow hard against it. Lights out!
Now you have experience both hyperventalating and fainting. Maybe a little panic if you're nervous to try it.
My Dad taught us this when we were young and we're all old now, so I don't think it will hurt you.