I usually go to gym everyday and do all kinds of workouts. This morning, I was doing squats with weights on (weight - 35 KGS). Suddenly I felt a pain in lower back and stopped squatting. From that moment, I couldn't walk freely, I am unable to shift from a position of comfort, gives me pain even when I am sitting in a chair. Is this serious? Even while lying on my back also I cannot move on my left/right as I can feel the pain. Please suggest that course of action.