dont you believe there was nothing there dogs are far more sensitive then most of us, your old girl has only gone in body she is still about you just cant see her. my pony had garlic every day in his feed ,the morning after he was put to sleep , there was an overwelming smell of garlic in my kitchen for about a couple of minuets then it just went my son turned to me and said its just sam mum letting you know hes not gone far ,after my dad died every time i went to my mums, after i had been there a little while, a scented smell would come it would last a few minuets then go ,then 1 day when we were cleaning out some drawers she found his after shave as soon as we took the lid off we both knew what the smell was it didnt come again , lil will pick up hopefully soon, cassie still has miserable days now and again ,how do you feel, any better ? i hope so will speak to you soon