Real problem or anxiety

I am having either real heart problems or anxiety.  I am worried about which it is.  

Facts:

Severly overweight (almost 400 pounds)

38 years old

Taking medication for high bp - highest tested was about 150/95 - with medication it is usually around 130/80

Cholesterol is 111 ldl / 27 hdl

Triglycerides are 169

Very sedentary lifestyle because I am scared if i have a heart problem exercise will trigger it

Having chest pain sometimes - alot of shoulder pain.   Shoulder pain occurs mostly with moving but sometimes when not but definitely gets worse with moving

had a stress test in march that came back with no problems but i fear they missed it

resting heart rate according to fitbit is 73 

Long story short is that the chest/arm/shoulder pain coupled with my weight makes me worry that I do have heart problems that were missed.  

Please let me know your thoughts.  Should I trust my feelings or my Dr?  What are the odds that chest and shoulder/arm pain at my size are unrelated to heart?  I am racking up medical bills and not finding answers.  Should I take this to mean it is all in my head or trust my instincts and find a new dr who will find the cause?

Hi William,anxiety does mimic heart problems eg You worry,so your heart races,you panic thinking its a heart attack,it races even more...I thnk u nd peace of mind,if the stress test was clear,but ur still unhappy,u cld ask 4 echocardiogram,thats a scan on ur heart,it shows how well its pumping etc....hope this helps