For the past few months, I've been having some problems. I'm a 22 year old male, about 160lbs.
It all started last November. I had been working night shifts (retail) for a year at that point, and out of nowhere one night I felt a sharp stabbing pain in the center of my chest that only lasted for a second, then it happened again just a little while after. For the following three hours or so, I also experienced shortness of breath.
I went to a doctor right after my shift ended, and for the following few weeks, I was taking regular tests (several blood tests, a few EKGs, a couple chest X-Rays and a Holter recording). The doctors didn't seem to find anything, except evidence of PVC. The worst that the Holter managed to catch happen was two instances in the 24 hour period where my heart irregularly beat three times in a row. I was prescribed Metropolol and Diclofenac, and also some Ativan in the case that it was all being caused by Anxiety or stress (something which I can understand). For a while it seemed to work, but as the doctors kept sending me to have more of the same blood tests and were telling me to test taking each drug in varying doses to see what worked, I decided to take matters into my own hands.
At the end of the year, I decided to stop working night shifts and switch back to a normal sleep schedule, along with seeing how I would do without taking any medication. For a month and a half, it worked perfectly - no chest pain or shortness of breath. The irregular heartbeat didn't change, of course, since I've had that for years.
Then in mid-February, the dull pain in the lower-left part of my ribcage came back. At this point it is almost constant throughout the day. It seems to have no bearing on what I am doing at the time, and is not aggravated by breathing deeply, moving around, or even running. I have yet to feel any sharp and sudden pain.
I've been to three doctors - two in a Med clinic and one in a hospital; none of them came up with anything solid. Does anyone have any idea what could be causing this?
Various factors predispose a person to greater risk for heart problems. Even if you are on the low end of the scale, you still may have some risk. However, I do not know what to think of all of these symptoms. You are only 22, but describe a mix of angina like and non angina like symptoms. You first said that you experienced a sharp pain, but later indicated that a dull pain came back. I repeat. If your symptoms change, tell your doctor. If you still have questions, unresolved issues or worries, tell your doctor. Good communication will work in your favor.
If the symptoms are clearly angina like, and your doctor is not addressing your issues, seek a second opinion.