Advice Needed Puking from a cigar

Hm? Cigarettes contain a huge amount of chemicals that all have different affects on your body. They also affect your brain by limiting the oxygen that is given to said brain. That can cause headaches, dizziness and nausea as far as I am aware. There isn't anything specifically wrong with you judging by the symptoms given, it is just how cigarettes affect the body. Some are better fit against it and some are not, hence you should probably stop smoking.