Quit smoking 5 weeks ago. 20 cigarettes a day, 15 years. sore throat, uncomfortable chest feeling. feeling tired. normal at this stag?

Can be: When the nicotine stops paralyzing the cillia so they can help get the yuck out of your lungs, it can take several weeks to accomplish this housekeeping. Vaporizer (steam best if can use safely) can help process. There is 15yrs' of stuff to remove, so have to balance patience with checking for other issue presence. If not slowing in 3 more weeks, best to see your dr.