Sorry for the late reply.
But I think I`ve found the cause of my leg problems.
I studied my lower body properly yesterday.
The problem seems to be with leg length.
My R leg seems to be tad longer than my L.
So u see-my L leg is straight and my R leg is on a slight angle to accomodate its greater length.
Because of which it points to the outside.
When I walk on my back heels or on my toes I limp. To get a sensation of what I go through wear a shoe on your R leg and nothing on your L. Then walk, squat and dead. You`ll find that on sqts and deads ur hips and lower back rotates on ur left.
Thats what I used to go through when I used to lift.