No phantom smells for a while now. I thought I smelled burning wood at the bottom of my stairs but when I looked outside a neighbour was actually burning garden waste.
Same goes for the phantom pops, cracks and whistles. I barely hear them now or if I do I just accept it is cos I am in an old building and not that my electronics have exploded
When i go for my nightwalks i see sometimes little black shawdows walking behind trees,cars and rubbishbins. That is usually when i am stressed. I am not worry about it. Could be just rats or something.