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These are the symptoms of nicotine
on your body which is quite typical. I would advise you to stay off smoking
in any form as it can cause high incidence of cancer in mouth, throat, food pipe, voice box, lungs and even urinary bladder
. Also it causes irreversible damage to lungs and it can cause amputation
of your legs by a disease called Thrombangitis obliterans. Read up about them and you will know smoking is really very injurious to health. To stop smoking you can contact Nicotine deaddiction groups at reputed centres and consult with them.