Food aversions/cravings

I can't stand the smell of any cooking meat. Hubby made tacos last night and I ate in the other room :/ I used to love tacos!!! Wtf?!? All I eat is subway. Every day! Is eat it ever meal if I could afford it! Lol all I want is birthday cake and ice cream and sweets! I'm diabetic so I can't indudgle like some of you other ladies!! Any one else have weird cravings or aversions?