Hi Gary! Gee, I don't think I've earned my wings yet but maybe half a halo. ;)
Stones are soft, since they are mostly fat, so altho we call them stones they are congealed fats. :) So yep, those are stones! :) woo hoo!
Sounds like you're keeping pretty clean so yes, the foot pads might be a good next step - no pun intended - for you. :) I'm doing great so far with the Masters Miracle stuff, might want to consider those products or something to really alkalinate your system so that detoxing on a cellular level happens naturally. Lemon/ACV water morning and evening is great for that. :)