I've Been A Smoker For 30 Years And Approx 4

I've been a smoker for 30 years and approx 4 years ago i noticed that my chest started tightening i went to emergency thinking i was having a heart attack but the hospital reassured me that it was more of a panic attack but I've had panic attacks before and they felt nothing like that, a few months later same thing only stronger this time with sharp pains up and down my left arm again doctor suggested that my be under stress.
I know this is related to my smoking, about a year and a half ago was doing some drinking and smoking ,Im not a big drinker maybe have 6 beers a year and consume 1 bottle of wine through out the year , but on this occasion what drank should not have made me vomit as much as i did with nearly blacking out , EMS was called and i spent some time in the hospital that evening the doctor turned to my family and said he knows what he did till day i still don't , so i lost a little trust , so for the last year or I've been feeling like crap , what i cough up is jello like, there is a dull pain in my chest and head i feel dizzy sometimes I've noticed lumps around my chest,arms, stomach and legs, one specific lump on the left front side of my head with discomfort a dull pain shoots down from there down the left side of face and it feels like a needle or two going in followed by a burning sensation. i feel like theres something stuck in my head keep blowing my nose to the point that its giving me abs but I've been doing this now for over a year, last few weeks all these are then ever before i haven't had a good night sleep and can't remember when. please help me