Okay I've seen other questions about this on here so I don't feel as crazy as I did before. But I have a different reason for the smell.
When I was in a competitive sport, one of the team leaders would smoke all the time around us. It was horrible. I would go home and smell that smell of cigarettes for weeks. I could never get rid of it. Once I stopped the sport a few years later, I didn't smell it anymore. Nobody in my family smokes. Then, I had a boyfriend for 3 years that was a heavy smoker, but I never got this constant smell, but I was always extremely irritated by the smell and my eyes would get itchy.
A few days ago, I went to a bar where a lot of people were smoking. I went home and got into clean clothes and went to bed. When I woke up, I had such a strong smell of cigarettes. And now, I have it all day, every day. No matter where I go. And it's starting to give me a headache. Yesterday, I accidentally walked through a cloud of someone's smoke at the college that I attend. Throughout my entire class, I could not stop sneezing, and I had so much phlegm, a runny nose, and watery eyes. I don't have allergies to anything, well maybe cigarette smoke? I cannot get the smell to go away.