I've talked to my doctor several times about quitting and he always explains that your body goes through A LOT of changes to get to used to cigarettes, so naturally it takes a long time to readjust to not having them. You may experience coughing or increase mucus and hacking stuff up, but you shouldn't be experiencing chest pain so bad you want to go back.
If the chest pain feels similar to a burning happens because of increased coughing after quitting, that is normal. Smoke does a lot damage to your lungs, including burning some sort of tissue in your lungs.
If it keeps up for a few more days, or gets worse, don't smoke anything and see your doctor immediately.
iAMmikeD got a reaction from Cheriepye in Side Effects - Chest Pain?