Well, I got 'em from the 2nd or 3rd day I took pills, and back then I was only taking the 3mg a day. If anything, taking more than 3mg knocks me out quicker and usually prevents me from having to deal with symptoms. Then again I wake up feeling more fatigued, so maybe I sleep through choking to death? *Shrugs* Dunno xD
Either way, from what I read, as long as not allergic, dosage doesn't really matter to at least 15mg, even though it's not recommended. I think I only have a problem cause I am allergic. But like I said, I'm still alive, so screw it
Even if you're asleep the symptoms will happen, and you won't go into as deep a sleep as your body requires to recover. You would probably get better rest if you didn't take the pills.