Sorry to hear you are having this problem, my suggestion is before being suspicious inside your house to look at the pharmacy, More than one time Iran out of pain meds, so when i noriced it was always too soon I started counting my pills and I noticed the pharmacy was shorting me, when I noticed that I decided to count them in front of the store manager and pharmacist, the shortage was from the pharmacy, I dont kno how they handled the situation but I know they did as I havent been shorted again since. only after that would i Start looking inside my home. also I tell very few people aout what drugs I take and I destroy the labels before discarding the bottle.I mnow this means living with pain for a couple of days but it is where I would start. I hope this is where the issue is, best of luck to you