
Hi There I’m A 25 Year Old Female (five Foot

I would explain as follows:
Detailed Answer:
Hello!
Welcome back to Ask a Doctor service!
I am glad to hear that the CT scan with contrast has ruled out PE and your pulmonary function tests have resulted normal.
You should know that the increased systolic activity and tachycardia are related to the activation of the sympathetic nervous system. This is a normal physiological reaction to psychological stress or physical activity in healthy persons. In some sensitive persons, this reaction may be exaggerated.
Considering the episodes of shortness of breath and tachycardia, I would recommend further tests to help investigate on a possible heart issue.
In this regard, I would recommend performing a cardiac ultrasound,to help examine your heart structure and function and an ambulatory 24-48 hours ECG monitoring (Holter) to help examine your heart rhythm trends for a prolonged time in order to help determine the type of cardiac arrhythmia.
I would also recommend checking thyroid hormone levels in order to exclude a possible thyroid gland dysfunction, which could trigger the episodes of shortness of breath and tachycardia.
I hope you will find this information helpful!
If you have any other questions, please don't hesitate to ask me again!
Kind regards,
Dr. Ilir Sharka

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