So I set out for my longest and most aggressive ride to date this morning, typically I have been riding in the afternoons for 20 miles or so (I only started road cycling about 6 weeks ago). It was a nice cool, sunny morning just a little windy which really killed me on one stretch on a main road. I was feeling great and riding strong through mile 18 when all the sudden the left side of my back was in excruciating pain. From the middle back up to my arm pit was killing with each breath and bump. I had to take a ten minute rest, but the back wasn't feeling any better so I decided to just tough through it and make my way home. I rode ten more miles home and had to have the girlfriend put the bike in the basement when I got back. It hurt for about a half hour so I laid on my back on the floor until it felt good enough to take a shower. It has now been about 7 hours since my ride and I am feeling much better just a little twinge in the lower back, no biggie.
Has anyone else experienced this when riding? I think it must have been a spasam or cramp or something. If it were a pulled muscle or something with the spine it would definately not be feeling any better this soon.