Just got over the same thing, either sciatica, or pinched nerve left hand side. Left hip was replaced 10 years ago, usually the right one hurts some. All arthritis. Think mine flared up from driving a cab over truck for 6-7 hours. Had the seat adjusted to maximum weight, but I'd still bottom it out, I go 225-230, and had the seat adjusted to 285. Think when I go into work tomorrow, gonna tell the boss, gonna have to find a different monkey to drive that truck.