Hurting during WILD?

I was sitting there in bed with my arms behind my head, I was concentrating on my breathing and was trying to see little lines or something in my eyelids(your supposed to do that, right?) but whenever I thought I was seeing something in my eyelids I realized it was in the back of my brain. So I started to do this thing I read in a thread-imagining going down stairs and counting them as I concentrated on my breathing-but after about five minutes of trying that(about 20 minutes in total) my upper body started to hurt and not just an unpleasant hurt but a I feel cramped and need to move or it will hurt more kinda hurt. Is this normal or bad and what am I doing wrong? Am I supposed to see stuff in the back of my head or in my eyelids and was I in some sort of bad position to be comfortable? And does that trick with the stairs really work?

I don't think you're supposed to hurt during a WILD. I've heard of people feeling all sorts of other sensations but not really bad pain. Not sure what that's about but try remember what you did, ate, drank, before you tried to WILD. Could be the position. Try something different next time.

You don't have to see the imagry on the back of your eye lids or back of the brain, or anywhere. Don't focus on anything really. It'll simply appear, just passively be aware of it. It should lead you into a dream if you hang onto consciousness as your body falls to sleep.

I've only tried the steps method once so I can't say if it always works or not. I'm going to guess that it, like most other methods, takes practice.

I've had pain. Usually it just comes from being tired, if I'm tired (like I am now) my muscles kind of ache.