Unidentified Chest Tightness
(23, male) Over the last six months I have been experiencing sporadic chest tightness/spasms. Initially it was diagnosed as esophageal spasms due to GERD and anxiety, but the results of my endoscopy all came back normal. I've also had two EKGs and blood work performed all coming back normal when I thought it was something cardiac-related. Additionally, I have also been given an inhaler that doesn't seem to have an affect.
When these episodes occur I feel like my body undergoes a huge wave of adrenaline. Now I feel like my body is on constant alarm, and it's starting to really wear on me.
Any idea what could be causing this?