### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have shortness of breath that started around 2007.  I have mitral valve prolapse and grade 1 diastolic dysfunction of heart. I was told by cardiologists not to worry about the heart its all ok. but I can not stop having this shortness of breath. It gets better when I lie flat on my stomach at night when I go to bed.  I have only mild asthma and my dr. said my asthma can not be causing this. I saw a nerve doctor and he said it not my nerves. prior to getting the shortness of breath I was very healthy and used to go dancing and skiing etc. now I am afraid to do too much since I am afraid of being soffucated. I have had one pregnancy and it went ok and this shortness of breath started 2 years after pregnancy. I think its either the heart or the lung or diaphragm. this month i will be seeing an ent since i have had previous sinus surgeries and one of the sinus cavities seems to have a large hole since mucus chucnks fall once in a while. also my gi said I have mild gerd but he said not to worry about it after. he did a fluroscopy to find it. another asthma doc said its just a condition i need to live with . well its very scary. can anyone help? I also get heart palpitations once in a while. Is there any diaphragm or good lung doctors out there? I have seen a pulmo but he just dismissed it to anxiety. but I am definitely not hyperventilating I am very calm and still getting this shortness of breath.  also xanax does not make it go away nor does clonozapam.

### output:

Hello can understand your concern. So as you explain you have several factors that may contribute in your shortness of breath. All of these as mitral valve prolapse, diastolic dysfunction of heart, mild asthma, mild herd have a role in your concern. I would recommend you to do further these tests:Metacholine testSpirometryTSH,FT4 for thyroid problems. In my opinion if you treat well all these pathologies you will feel better. Chronic sinusitis have a role in cough not so mach in dyspnea as you feel. Do not smoke, do some exercise, do not gain weight and for sure you will feel good. Thank you Chat Doctor. 