i am 56yrs old 5ft 4 in and 13stone. 2 weeks ago i fell really hard from 2ft leaving a massive bruise on my left thigh, from top of my knee to the bottom of my buttock. i could walk straight away so thought i have not broke any bones. the past week a week after fallinng i have a severe stabbing on walking otherwise my mobility is good.do you think i need an xray to eliminate a hailine fracture?