i LOVE LOVE river don't get me wrong but her regeneration from melody to river bothers me a bit, because she regenrated and right way she was able to move around and almost kill the doctor and jump and steal colthes from people which was freaking awesome but whta bothered me is this

river is not even a time lord, like the doctor who regenrated 11 times and in each time he always take hours to get used to his new body and was unconscious for hours, even eleven took a bit time to get used to his body

yet somehow river who isn't even a time lord/lady regenrated and walked and jumped like it was nothing

It annoys me