Has this happened to anyone else or am I losing it?

I’m 35+5 and it started awhile back where I was obsessed with cleaning.. and smelling cleaning products. I assumed its apart of nesting I would clean the F out of everything everyday just to smell bleach, windex, pinesol, just anything CLEAN and it would just smell so good even smelling my husbands butt wipes. Just the smell of anything clean would drive me nuts I needed it. (Still absolutely feel this way) but then after weeks of this it’s escalating to gasoline and worse things. We have a gas jug in the shed and I am constantly sneaking out to sniff the gas fumes and my husband would catch me and assumed I was smoking at first but then when he found out it was gas he just got so angry with me telling me thats not okay and something is seriously wrong with me and although I agree I just cant help myself. Something draws me out there to it. An urge I just need one sniff to satisfy myself and the gas is the worst but best smell I dont know what is going on with me! I read online that its not harmful and cant get through the placenta and doctors say it can be normal in the third trimester blah blah possibly a sign of low iron/anemia? Am I the only one whos dealing with these urges or am I losing it?!!?