I loooove 3D ! Can't get enough. I had that problem the first time couple times I saw movies in 3D but then realised I was concentrating too hard to see the "3D" but if you relax and just watch it as a regular movie and the let the "3D" come to you instead of you trying to find, you'll find its brilliant. Hope that makes sense ?
BTW Mrs still has this problem, she just can't seem to let go. I did see POC4 but in regular 3d other than a few purposely added scenes I could make out it would not add anything to watch it in 3D.
Movies I enjoyed watching in 3D the most. Beowulf and Resident Evil 4. Movies I didn't enjoy in 3D. Avatar, which BTW most of the movie was in 2D with only some scenes in 3D.
Now waiting for Transformer 3 3D IMAX !