Hi..
Visit a good physiotherapist to get the assessmemt done. Nerve compression can be a reason why you're facing this trouble.
Next Steps
any history of fall or injury to the back?
Health Tips
avoid being in one position for long durations.
avoid bending in front and avoid lifting anything heavy.
Adjust the height of you chair at your workplace so that the hip and thigh angle is 90°
follow the do's and don't given by your therapist, followed by quadriceps stretching,IT band stretch and hamstring stretch.