I Am A 53 Yr Old Female. I Am Over

I am a 53 yr old female. I am over weight. I have migraines. recently I have started smelling smoke. No matter where I go, I smell it. It almost burns. been going on for 2 weeks. I also have been having short dizzy spells, or light headedness, as well as nausea after I eat, no matter what I eat. I havent been to the dr because I have no health insurance. Can you help?