Hi guys I'm new but what I'm wanting to know from you guys is that I've had a cough for about three weeks now and it hasn't gone away and I somewhat feel like I'm short of breath but that goes away when I don't think about it but comes back when I think about it. My cough is mostly dry maybe like 3 times that it came with little mucus. It's mostly during the day because when I go to sleep I sleep fine I don't wake up from coughing. So what I did was search on google for my symptoms and all these diseases came up and like illnesses and I'm really scared that it might be lung cancer or something else im just really scared like I keep thinking about it and it freaks me out like the fact the I worry so much gives me anxiety that I can't live happy or I haven't lived happy for the three weeks I had this cough I'm just really scared I'm 16 and I haven't smoked nothing in my life !!!! Also my shortness of breath didn't start with the coughing it started one day when I got so full but I didn't eat so much I felt bloated for like 3 days that's when my shortness of breath started until now my shortness of breath has been going on for about a month and 10 days but it has gone better and it somehow goes away when I don't think about it but when I do I feel like I'm out of breath sorry for the long text I'm just really worried that it might be something serious I'm going to the doctors soon but I've just been worrying so much.