Conversation: The conversation between human and AI assistant.
[|Human|] I had an echocardiogram, nuclear ultrasound and angiogram all within last 2 months, tests were within normal range but am still getting symptoms of chest pain/pressure, sob, mostly when walking too much or climbing stairs, and feet swell and throb after walking a short time. Why???
[|AI|]  Thanks for your question on Chat Doctor. No need to worry about heart diseases for your symptoms as your cardiac tests are normal. Similar symptoms are also seen in bronchitis (inflammation of airways). So better to consult pulmonologist and get done clinical examination of respiratory system and PFT (Pulmonary Function Test). PFT will not only diagnose bronchitis, but it will also tell you about severity of the disease and treatment is based on severity only. You may need inhaled bronchodilators (formoterol or albuterol) and inhaled corticosteroid(ICS) (budesonide or fluticasone). Don't worry, you will be alright with all these. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.