I had a massage and after it was over my massage therapist role me that she could feel either calcium or cartilage build-up on the bottoms of my feet. She said that this could be a sign of all sorts of problems with my "girl area". I can't feel these build-ups when I touch my feet, but am wondering if there is any validity to this? I know that there are ways they can help heal things (like sinus issues or something) by rubbing or pressing on a certain area...? LEGITIMATE answers only please - and thank you!