Brief Answer:
Visit your clinician for evaluation and investigations.

Detailed Answer:
Hi....
Welcome to "Ask a Doctor "service.
I am Dr Ajeet XXXXXXX

I have gone through your query and here is my opinion.

Please share some details of your symptoms that whether you are short of breath even at rest or during exertion,when did the symptoms started,do you have any associated symptoms like cough,fever,swelling in legs etc.These details would help me to evaluate you further.

Breathlessness might be due to multiple reasons ranging from obesity,intense exercise,anemia,stuffy nose,anxiety,panic attacks to lung or heart pathology (like obstructive lung diseases,pneumonia,heart failure etc).

Please see a clinician for your complete evaluation and management.
He/She would go for your detailed physical examination,blood work(including complete blood counts,eosinophil counts,serum electrolytes,Thyroid hormone levels) ,ECG,Chest X ray,PFT (Pulmonary function tests),2-D Echo and other relevant tests and tailor the treatment according to the findings.

Meanwhile shed extra weight (if overweight), avoid intense exercise, quite smoking(if applies), avoid environmental pollutants, sleep in a propped up position and instill nasal drops if you have recurrent stuffy nose.

Hope that I have answered your query.

Stay healthy and stay blessed.
Regards.

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