So my 5 1/2 - 6 month old puppy was housebroken about 2 weeks ago. He didn't have accidents in the house and would whine when he had to go out. All of a sudden he seems to have forgotten everything that he knew. He no longer whines when he has to pee and just starts peeing the instant he wakes up. I mean the very instant he wakes up he's peed on my couch because of this! If this was just a one time thing that would be fine, but this has been happening every day this week. It's as though he's completely forgotten his training. Is this normal? Should I seek out a trainer? What should I do?