Baffling to say the least. I can't advise on upping the dose of vitamins but I do know that the B's are water soluble which means they go through the system fast so maybe trying to up the dose some would be a good idea. I don't know what all your giving her though. I need to go read up on this.Yes we have been limiting her mobility. I just don't know what to make of this. It's been going on for close to 2 weeks. Now that her limp is much improved my biggest concern is the swelling and how pale her leg color is. I am assuming that the hotness is connected to the swelling and once we get under control the hotness will also go away. I am just not sure how the pale grey color of her legs ties into the other symptoms. She is growing and feathering out nicely. She is the same size as her hatch mate Jezzabelle.