7 year old lab potty issues
	
	
		We just installed an invisible fence in our yard and our 1 year old boxer is doing fine with it, but on the other hand our almost 7 year old lab is not she has now been peeing and pooping in our house again.  Before she would ask to go outside and do all of her business out there, but since we installed the fence she has been doing her business inside more and more.  It is mostly when we leave the house that she does this.  I am thinking about investing in another kennel to keep her in when we are gone, but it has been a long time since she has been confined to one of these will this cause more stress on her?