I have a sharp achy pain inside both feet. It is on the bottom of my feet, up inside towards the top of my arch but not in the ball. It hurts mostly at night and worse if I put any pressure on my feet like laying with one foot under my other leg. I also have a lot of pain and stiffness when I first stand in the morning, but eases after walking for awhile. I also have bulging disk in my lower back along with lumbar stinosis, along with some hip issues and was wondering if my back or hips may be the cause?