Why do I randomly have shortness of breath?

Why do i get this shortness of breath?

• Lately, since the end of July, I've been getting this shortness of breath. It's happened before, but not often as now. It happens to me probably not everyday, but every week. I'm starting to get concerned. I don't get the whole wheezing noise or anything. I've also started to have to go to the bathroom more often, but not to often, mostly at night. I have P.E. everyday at school at nothing goes wrong and it doesn't happen at the time like when I'm running. Mostly happens when I'm just sitting down quietly at home not doing too much physical work like walking around. I'm a singer, well, not really, but I like to sing. It's strange because when I get a shortness of breath I'm all quiet or talking a little bit. But when I sing, it's like I'm back to normal and nothing happened and My breathing is just fine. I'm a teen, and I'm just wondering if this is normal and whats going on with my breathing.

• Answer:

  You need to have that checked.It could be a stress,asthmatic,or even a cardiac problem,such as moderate severe heart murmer,or maybe an arrhythmia issue (irregular heartbeat).