I am having trouble breathing could it be due to the air quality in my apartment?

I used to smoke a TON of weed & cigarettes (every day for 8 years), but i have not in five years. I wasnt having any trouble breathing a couple years ago. I moved into a new apartment, which is also happen to be a housing project. Many of the people here are on drugs. The downstaris negihbor constantly smokes weed / cigars/ cigarettes/ something else that come through the floor really strong. it smells almost like were in the same room with them. then the hallway is indoor . there is no ventialtion. there are people who smoke cigarettes in the hallway all night. my whole house fills with smoke. alos, i suspect there could be mold growing in the corner. there was a pipe leak a year ago and the plumber said there was mold over there. There is also a rubber hallway that stinks really bad. they mop it with a perfumey mop solution, which absorbs. When people who dont live here walk into the buildign they always comment on how bad it stnks. Now im on an inhaler. My 3 year old has had pneumonia and bronchitis. when we moved in she had chrnoic lung infections. she is getting used to it by now, but im getting worse. Im using the inhaler several times a day (instead of every day). Is this from this bad environment? were moving out, will the damage be healed once we leave? (weve been here two years - moving out in 1 week due ot the smoke, thanks)