Hi, I haven't smoked a cigarette in 7 days, I smoked almost everyday for 30 years. My cravings are minimal, luckily, but I do get quick spasms in my sides, sometimes around my left upper chest as well. I am male, 45 years old, 220 lbs, 6'2" tall, no other major medical issues. But 10 years ago I had a epidermal cyst removed (on my back) and now since I've quit it feels like the cyst is growing back...and spreading? Is it possible the nicotine masked the sensation around the cyst area all these years?