Yeupp....
Been there done that and this is why I am a little passionate about it...
Tweaked my back pretty good getting out of my car and slipping on some mud..
After about a year of misery and copious amounts Advil.. finally I went to the MD, she refereed me to a PT and he started me on all of these stretching routines....then started on the strength exercises...
The stretching alone fixed it!