I am worried about whether or not I have lung cancer, as my shoulder is hurting a bit, a few weeks ago I jarred my shoulder on a train journey and think I pulled my arm) or more likely overstrech reaching for something,

I have done the crime of googling this and it says it could be lung cancer

I also heard a few weeks ago my Nan had a heart attack. she is out of hospital had some stents (sp? put in her arm.