I first tried meth three years ago and hated it.
I was so disgusted by it, couldn't fathom how people could become addicted to such a dumb drug and vowed to never touch the stuff again.
I started using it this past summer because I was looking for molly or soft but could only find meth.
The stigma is gone for me and now it's on it's way to becoming a problem.
I'm not saying that you should do it again, but there is a strong likelihood that you will...eventually.
If there is a next time, I would recommend smoking it instead.
The amount you put into a line is enough to smoke a couple bowls with.
Each bowl goes around a small group of people SEVERAL times and you can wait an hour or two before starting to feel like you could use more.
If he was doing meth, I really wonder how he managed to pass out?
In the meantime, rest. Take it easy. Stay home, eat and drink well.
After my first meth binge I slept 18+ hours a day for a few days before I felt like I could possibly get out of bed for more than food or a washroom break.