I had a 4 month horrifying experience living on the 2nd floor in a 2 family home. This was Jan - April 2017. A 60 year old woman on the first floor was using crack and/or meth, and it was making me sick. Told landlord that there was the constant chemical vapor in the house, described as oven cleaner, sulfur, with a slightly sweet undertone at times. I observed her with huge pupils and am positive she was using and polluting the entire house. After two months that she moved in my chest/lungs and nostrils had a constant burning numbing sensation. I could smell her crack and cigarette fumes and stink coming out her windows in the yard. After 4 months of gagging and getting sick with no help from landlord or police that I called on her, I had to move out, not her. There needs to be some better laws against these disgusting and deadly drug users. Prior to this experience I was relatively healthy riding a bicycle or walking 10+ miles and mowing grass with push lawnmower. When I finally couldn't stand the disgusting pollution and fumes she was making, I also developed severe leg muscle pain upon limited exertion which I never had in my life. I have finally realized it's not going away and today had an ultrasound test for circulation problem in my legs. I now am waiting for results. If anyone out there or anyone you know smells odd chemical fumes or smoke living above another tenant, take it seriously and get out. I called police, they said they didn't smell anything, called landlord numerous times, he said he smelled what I described as oven cleaner with a sweet undertone but couldn't do anything without actually catching her red handed. This crack **** doesn't really have that much of a smell, it's more like fumes or vapors that you only notice the nasty effectswhen your in the atmosphere for maybe 6-8 hrs. This was the worst experience of my life and everyone except one close friend of mine was doubting me that this 60 year old lady was smoking cigarettes and mostly crack, 20 hours a day. All the windows open on 2nd floor could not get rid of her nasty fumes from her drugs. So if anyone has or knows someone experiencing what I've described here, you're not crazy, and get out of that atmosphere at any cost. I can't walk up a flight of a stairs anymore without burning leg muscle pain that I never had my whole life prior to this.