Oh well. Glad your on the mend. 4 weeks! Ouch. Thanks for the info. I'm only guessing its a groin strain. Feels it tight in the top of the inner thigh when walking up stairs but only mild. And feels a little week to walk on as well. It felt a bit sore before I ran a half marathon on Sunday but when I run I didn't hurt at all. Only the next day feeling weak again.