Oh Steve, you are in the middle of a hard place. Don't worry about your son, his stone will be removed quickly but he will have to keep to a diet to help deter them coming back. You have more of a worry with Mum I know, as older people don't heal as quickly. Just take all the good vibes, a deep breath and take care of yourself. You won't be much good to them if you go downhill too... hugs to you and I hope they all return to you very soon.
cassie xxx