I can't see very well if my contacts are in backwards. Also, that pain never goes away until I get it out and fix the problem.
Perhaps there was a speck of something on the Lens when you put it it. Tearing up when it hurt could have washed it away, which was why it doesn't hurt anymore.
But if you aren't sure, its easy enough to pop it out, rinse it and put it back in again.
I hope that helps. :)