I had the same problem for about the first two weeks of induction, and still do if I have too many carbs and then go back to induction levels. What works for me is freshly milled flax in my morning shake. Great Omegas and fibre to boot! I believe it's your body flushing out your bowels and getting rid of excess water. Mine always goes away..... hang in there!!!! (baby wipes help with the soreness)