I've had lower back pain off & on thru the yrs not alot but when I got it one swift sharp pain across lower back & thats it out of commission. Funny wasn't even lifting anything just reaching for cup etc. This is different pain in lower back that goes to groin area & leg on one side. I've had this quite awhile esp since it turned cold out. Anyone have a name for this & any help. Usually a chiro helps but now trying to find a good one that gives good adjustment.