need to know since when have you had this ? is this the first time or have you had it before? which other body parts are involved? do you any other co-existing illness? anybody else in family has similar issues? need more information for proper assessment. also I am sorry if you have financial issues to pay for seeking professional opinion, but I would suggest you could consider visiting a government institution in your vicinity where services would probably be offered at a much discounted price. you are more than welcome to consult with me if you wish.