At EDC two years ago I took a ton of adderall because I was with a friend who doesn't really know I'm a drug user so I couldn't do anything that was obvious. I had a fantastic time at the festival and had supple energy to get through the entire night but when I got back to my hotel I started getting the worst comedown I've ever had. I felt extremely nauseous, but could not possibly throw up. My body was complaining of every ailment it could possibly have at once: exhausted, jittery, hot, cold, sleepy, wide awake, etc. I spent probably four hours begging to puke and fall asleep before I managed to sleep.
Now I don't do adderall anymore.