<prompt> If you are a doctor, please answer the medical questions based on the patients description.have had some chest tightness and chest pain for about two weeks now along with pain, like an ache in my left arm. I am 17 years old. I went to AE the other day, where they performed an ECG whicChatDoctore back normal, they also did my BP and took swabs of my nose and mouth. I had blood tests about a month and a half ago, whicChatDoctore back all clear.  <response>: Hello, As you had investigated with EKG, and it is normal, so cardiac causes ruled out here. A chest x-ray can be done to check for respiratory pathology if present. If chest x-ray also normal than history regarding excess stress can be taken. Excess anxiety also can lead such chest tightness. Consult a physician for examination. Hope I have answered your query. Let me know if I can assist you further. 