Second-hand smoke

Emily • 20 • avoiding pregnancy
I was at a friend's house tonight. She and her friends smoke A LOT of weed, but I don't. About 2 hours later I was driving home, and I became extremely dizzy -- to the point where I essentially blacked out -- and I vomited profusely. These symptoms were acute and stopped immediately after I threw up. 
I've looked online and it says these are normal reactions to inhaling smoke when you're not necessarily used to it. Have any of you had a similar experience? It freaked me out!!! I've never felt so out of control 😖