19 yrs old, male, unbearable chest pains.

I am currently 19 years old, 120lb, 6'1". Ever since I was 13 I have had these horrible pains in my heart, directly under my left nipple. The only way to describe it was literally by saying it feels like I'm being stabbed in the heart. This suddenly occurred after i was prescribed a medicine for my chronic headaches by my neurologists. After notifying him that i was getting horrible "heartburn," he assured me that there had been no side effects of heartburn with any other patient. He decided to try me on another medication but the pains continued so he just took me off medication in general. Ever since that time I feel like i have been scarred from what I was prescribed or it was just a coincidence that it started happening at that time. Unfortunately i do not recall the name of my prescribed medicines, but ever since that time I have not been able to feel comfortable in any state.

• I am not able to touch my chin to my chest without being in agnozing pain.
• I cannot lay down unless my whole body is flat, not even propping my back up without being in pain.
• I feel that this has caused me to have anxiety and constant panic attacks.

The worst it ever hurts is when out of no where I inhale and suddenly I feel a sharp pain in my heart. At this point i stop breathing and hold my breath. If i dare try to breath even the slightest bit it hurts more. Holding my breath stops it, sometimes I'm even scared to take another breath because of the pain, but after about 20 seconds or so i finally gain the courage to breathe again.

I would complain to my parents a lot but they would always say "it's all in your head." until finally my dad decides to take me to our general physician. After running a blood/urine test everything came up fine. I was really disappointed to find out "nothing was wrong" because then if they were to have found something, my parents would finally believe me. Yet nobody around me understands my pain. I started to complain again and the exact same scenario happened again. 

Now I just wait for the day I have a heart attack to prove them all wrong... If someone has any suggestions or thoughts I would appreciate a response.