tightness in chest,neck ,shortness of breath

hi guyz i've came across this forum wanted to see if i can get some help of what ive been going thru

2 months ago i was out for a birthday party i got intoxicated where i passed out couldnt really remeber what happened.The next morning i had this feeling in my left side of my chest (tightness as well almost like bubbles where in my left side of my chest) and i had a full blown panic attack, but later on things would get better like no tightness at all.Then 1 night i had another panic attack went to the er they did test on my chest ekg and x rays found nothing wrong said i might have anxiety.Ever since then ive had constant tightness in my neck lower back left side of chest ...went to my family doctor said i have spasms there but what he prescribed is not working...can anybody help me this has been ruining my life i can't go out without having thoughts of panic attacks tightness in my chest and the air feeling in my chest as well..could it be anxiety and panic attacks causing this or just spasm in those parts of my body