What Causes Itching Sensation In The Chest And Pubic Area?

Hi i used to work a heavy lifting job about 4 years ago i got home felt fine sat down with dinner and before i started eating i streched and took a deep breath suddenly i felt like a pop or a rupture in left chest followed by panic pain rapid breathes a insane heartrate and i felt like i was going to lose consciousness with phone in hand everything started to settle after about a minute and a half so i didnt call 911. Apon visiting my family physician she set me up with a stress test and a sleep apnia test all of which i passed so she concluded i tore connecting tissues in my sternum and with the lack of blood flow it takes months or years to heal. Well cut to now (3 years later) i have sharp lung pains across my back and under my arms also a constand dull burning almost raw feeling comming from my esophigus and lungs. It feels hard on my heart at times too i feel strained or tired get head spins when i get up or lift weights and it just feels like i cant get oxegen my head gets cloudy im only 30 have smoked for 10 years but quit cigarettes i had high blood pressure due to a past weight problem ( i presume) ive resolved with diet and exercise but my lungs and heart still feel aweful coffee seems to be a trigger so im quitting that as well but still i feel the large sore patches on my lungs i had past ulcers in my stomach and have deffent symptoms of G.E.R.D but this seems like something else my lungs also seemd to produce alot of mucus and i have a steady need to clear my throat its caused nausea and has overly effected my quality of life but i cant see a doctor untill i go home also from time to time i seem to break out in itchy bumps on the tops of my hands and they ve spread to my back elbows at times as well as a crazy itch at night (different itch feeling and no bumps) mostly on the middle of my chest and almost feeling like in my prostate now after this last apparent lung infection my lipnodes were swelling and hurting followed after that subsided but what felt like my appedix i dont consider myself a whiny person but im wondering if these symptoms sound like anything specific and what i should be asking the doctors to do when i can get to the hospital any advice would be greatly appreciated