yeah it sounds about right with the smoke being fought. it's amazing how determined negative energy can be in maintaining it's status quo.

we had a real hard time in one of our houses and it did take a fairly constant vigilance to keep it in check. if you feel the house needs more then i would go with that.
and like MD said you kinda have to set the ground rules for the house once you have laid claim to it (so to speak ). this can be done through many ways depending on the energy that you are up against. for me, it meant a whole lot of repetition of 'the rules' in each room and creating a wall around us personally for protection if things fell by the wayside.

HTH!