I've just worked out that your op. was less than a week ago (23rd?)
No wonder you still have some soreness. Do you take painkillers?
I don't remember the shin pain, but I did have a sort of nerve pain down the outside of my leg, off and on, for some time. My friend who has also had hip replacement said the same thing.
My doctor said it was normal - perhaps some minor nerve damage during he op. and the nerves repairing themselves. And still some inflammation after just a week. Best to ask your doctor though, or the nurse.
Try an icepack - very soothing