I have arthritis & fibromyalgia, apart from the constant pain etc I've started getting a sharp pain on top of left foot, I put foot down (not necessarily from sitting to standing) but I will get a sharp, sudden pain on top of foot where I nearly fall & have fallen once due to how intense the pain is. It only lasts for a minute or so but never had this before & suddenly it keeps happening? Someone else I know has also just started getting this pain? Anyone else have it or suffered in past from it? Xxxx