breathing problem with a heaviness in chest and lungs not taking in enough oxygen and

[b_icyb]

I am 31 year old female and a casual smoker. Since last few days i am experinceing a heaviness in the chest, breathing problem and constant yawning. My lungs are not taking in enough oxygen. Earlier yawning used to help, but now even while yawning i feel my lungs dont fill in with enough oxygen. I feel very tired while walking or using staircase. Please advise me. I hav stopped smoking as well after experiencing these symptoms. Is it some major respiratoy problem?

 

[Rhonda B♥]

Could be asthma. Yawning is a symptom as well.

 

[♥ APBT♥ @ R.I.P MJ ®]

It could be pneumonia. I picked up bacterial pneumonia somewhere recently and your symptoms sound similar.