Hello, new to this type of thing, glad to see so many others who chose to quit and others trying, just like me. I have been smoke free since March 18, not one cigarette. Immediately after I stopped smoking, I just noticed some minor fatigue. A couple weeks after, I had what appeared to be a sinus infection, but was actually related to me quitting cold turkey, I was told. Not too many issues since then, although, at certain times of the night, I do notice shortness of breath. I won't be doing anything strenuous or anything like that. Most of the time, I am laying down for awhile, and when I sit up or stand up, I become very short of breath. I was wondering, is this a side effect for most people around this time? I am 26 years old, have only smoked about 4 years, maybe half a pack a day. Like I said, it's mainly at night, but sometimes early in the morning when I wake up, I will also notice a slight shortness of breath. I've read it's cilia being repaired, which I have been trying to spit that tarry mucus out whenever I can. Was just trying to see, and hoping, that this was a normal thing that I'm feeling. It's not all day, I'm not too winded to walk distances or anything, it honestly seems the worst when I'm at complete rest, then go to do something requiring movement. Any thoughts and/or insights would be much appreciated. Thanks for your time.