8 year old Mini schnauzer has started pooping in the house

by Ashley
(Alabama )

Cash, Just turned 8 on 6/10/18. I have had him since he was 6 months old. Hes had his accidents over the years but recently has began pooping several times a day / night even with multiple times outside. there have been no dietary changes, no new stress or jobs ( J work nights and my husband works days... always someone here w him) there is no belly distention, bowel sounds are normal (I'm a nurse) and I can't understand what is going on.
Please help. we are probably headed to the vet this morning....