Hi, It Seems Every Time I Use Or Do Any

Hi, it seems every time I use or do any physical activity involving jumping/ running or bending through the hips I end up feeling extremely stiff and moderately to severely sore through my lower back and upper buttocks region (muscular). I can't tell if there is joint pain or nerve pain but I do get sharp pangs whilst moving too rapidly or bending the wrong way aside from the general stiffness and aching. I'm 18 and male and have a long sporting/ excersise history. Not sure whether it is serious enough to get checked up or if I should get scans done?