4 doctors agreed: See your doctor.: Kidney stones hurt and you should have pain medication to get you through them. Doctors usually get imaging on the stones to find out their size. If they are more than 7mm they're not likely to pass, less than that they likely do in less than 2-3 days.
Re: how long does it take a toenail to grow back? A big toenail can take up to 12-18 months to grow back. Find yourself a good nail tech who specializes in sculptured acrylic nails and have them sculpt a toenail for you. This can be maintained until the natural nail grows back.
As mentioned before, lizards have the ability to regenerate their tails. It takes about nine weeks for a lizard to grow their tail back. Within the first three weeks, the lizard's tail is a dark stump of lymph vessels. When the tails grow back, they regenerate from the inside-out. After six weeks, the whole shape of the tail has been regenerated.