Hello..I Would Like To Know If This Feeling Is Common...

Hello..I would like to know if this feeling is common... When I bend down or stretch my body, I feel like air or a pull..I mean I really don't know how to describe it...but it's where my leg and lower body meet. Next to the groin area... It's gotten a little worse in the last few days and it really feels uncomfortable when I walk or make certain movements... Please advise.. Thank you for your time in advanced!