After about 7/8-months I started getting really bad lower back pains that didn't really go away.
I do have a history of lower back pain from doing stupid things when younger, but normally it flares up, gives me a load of jip for a week or two then clears up.
Whereas, this time I was in agony for about a month or so and only then started to ease.
I found that by changing my posture - arse out and swinging my hips more, helped to ease the pain. I'm still doing the same now some 6-months later so guess it's possibly a bit of hip rotation.
Was it to do with teh PM, who knows? but it all seems to coincidental/differnt for it not to be, so guess it most likely was.