shroom
Take a break from the sand\clay for a while. It strips the intestinal lumen of surface cells, which is good in some cases, but can have side effects. Take less dose next time.
The chemistry of your bowel system is a bit off, and this is a normal thing for many who have irritable bowels.
Go back to eating normally, and it should be OK.
If this continues, you may experience dehydration. Must take lots of water, a bit of salty food, and something sour.
shroom