please help! 16 male

My problem started about 4 days ago wen my breathing suddenly took a turn for the worse (I have smoked canabis dailyfor 2 years now)  I have no idea what's wrong with me it feels like I'm constantly fighting for my breath which leads to sometimes mild and sometimes severe panic attack I'm 16 male and usually quite fit this is really starting to worry me now and also my breast bone sticks out a bit the hospital post this down to weight training but I dissagree someone please help

[Jcrow28]

Could be asthma, pneumonia, acute bronchitis or a panic attack. You should see a doctor to find the cause and get treatment whatever the cause may be.  

[BigAL908]

it could be from u smoking because smoking has bad effects

here's a tip stop smoking and relax