Color of stones

All my stones but a few are peagreen in color, the largest being 1 inch long
by 3/8 inch wide. I had 2 others that were 5/8 inch long. The color is solid through
the stone. Is this color indicative of anything? My new chiropractor diagnosed me
with reflux and I wonder which came first, the reflux or the stones. Or they could be
unrelated.