I'm happy to report that I think my fears may have been a false alarm. After taking a couple of ibuprofen last night (my first painkillers in three months!) I woke up feeling quite a bit better. A few random pains edged their way in throughout the course of the day, but overall, I'm doing okay.
The worst part was the fear. I have to be more careful. It's so hard for me to do, especially when there's so little pain. But I don't want to go through another day of worry like that again!
If the pain returns, I will make an appointment for a set of films or an MRI. Thanks for your concern!