I have been smoking about 1.5 grams for 13 years non-stop and I am on my 4th day or withdrawal and I am starting to have chest pains when I breathe deep...is this norma. Other symptoms I have are hot/cold spells, dizziness, loss of appetite, and nausea...I know most of these are normal, but the chest pains are concerning me. I am 27 years old.