Hello, I am a 32 year old male who has had anxiety since puberty . It all started with a panic attack with depersonalization , I felt like I was leaving my body. After that I quit sports cuz it gave me the same symptoms, along with a very high heartrate . I even stopped studying and been agoraphobic on and off for years. Laboured breathing is also a symptom that keeps recurring, I personally think I have heart failure because the only thing that seemed to help for my anxiety was alcohol, so I drank heavilly for a couple of years. I gained a lot of weight that time and couldn t do anything anymore, then I got chest tightness and again a full blown panic attack and went to my doc again. I quit drinking and smoking for over a year now. I take xanax instead, I can t tolerate ssri s. My question is this, my doc ran a full blood test, an ekg (had stress test when I was younger), thorax photo, and full physical. My bp is always 120/70or80, I think my laboured breathing is caused by heart failure but my doc says he s 100%sure it s not. He doesn t want to send me for an echo cuz he says it s unnecassery. But my resting pulse is just around 50 and I m not in shape, okay I started working out this past year and lost the weight I gained (I m 6ft2 and weigh 190pounds now) but my resting pulse has always been low. My labored breathing doesn t get worse with exercise though and my heartrate comes down pretty quick, I do get some pacs or pvcs but my doc says not to worry. I get 5 max a day. Should I stop worrying about heart failure and believe my doc that it s anxiety. I was diagnosed with chronic hyperventilation in the past and i get a stuffy nose after exercise (maybe that has to do with my labored breathing? exercise induced asthma/rinithis... After chest exercise my labored breathing is the worst so I don t do that anymore. I am wasting my days worrying instead of having a good time with my two young children. thx in advance