I have had this lump on my big toe for as long as I can remember. It feels like there is something hard in it but surrounded by liquid. It is not painful, but if I tap it or stub it - is the most painful thing ever. I've had x-rays done and nothing has shown. Sometimes it is huge (especially when I hit it). Other times it is relatively small but still VERY noticeable. Please help. I've heard of calcium build up, but have never had a doctor tell me that this is the case.