Basically, starting at least a month ago I started getting this weird tingling feeling in my left armpit. It first started happening to me in class, but it wasn't that strong so I ignored it. It started to get worse and worse, and becoming painful, and starting about 8 days ago I completely stopped smoking weed because I thought it might be contributing. It's like a tingling in my left underarm, plus pain in my left lung area and behind my left breast. My right side hurts a little sometimes, but not nearly as much as the left. The center of my chest feels tight, too. I went to the doctor a couple days ago and got a chest x-ray. The doctor said there was nothing serious, but it looked like there was some lung obstruction similar to asthma, and she said it could be from smoking weed (since I mentioned it). She also used an EKG to check my heart, and apparently there is nothing wrong with my heart. Sometimes my left arm feels a bit numb, too. However, the problem does not feel like it's getting better since I stopped smoking 8 days ago. Has anything like this happened to anyone else? I've been smoking weed for almost 4 years and this has never happened to me before. It's definitely NOT psychological, it's real pain (I can tell the difference, trust me). Sometimes it feels like it's getting even worse. Also, it's not bronchitis or smoker's cough because I'm not coughing at all.