help i feel like im dying

I'm 22 yesterday was the worst day of my life i felt like i couldn't breathe all day i suffer with anxiety really bad and now I've woke up this morning with aches all over my back and chest and a burning sensation in my left shoulder and arm

Anxiety is a beast I know it pops up all over the place you will be fine at the worst you may have a virus coming on but anxiety makes us feel poorly in many ways it will be fine

I'm scared it might be a heart attack now I'm getting pains in my left rib cage and coller bone

You really need to seek medical intervention. If in the UK ring either 999 or 111 service.