Walking is actually great for sciatica. The best way I avoid flare ups is by walking an hour daily. With that being said, it will take you a long ass time to see any fat loss resulting from strictly...
Cardio is better for "weight loss", which includes muscle loss, since it burns more calories.
Lifting is better for "fat loss" as resistance training prevents muscle loss.
I don't see any muscle on your body. Either you keep cutting and see your lifts stay weak, or you start bulking up right away trying to limit fat gain.
Same turkmen involved in the oil commerce between ISIS and Turkey at the Syria-Turkey border.
Same turkmen who were driving the trucks that were bombed yesterday.
Stop worrying so much about scale numbers and measurements... a 35.3 waist at 158 lbs means that you're well over 20% body fat, yet at that weight you certainly have ridiculously low lean body mass...
5 month and a half is a long ass time to diet. You may be flabby because your body is retaining a lot of water. Start by taking a 2 week break from dieting and eat at maintenance.
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