I think my high stress level job (both physical and mental) is bringing on heart attack symptoms

I’m 58, female and I work at a very busy Walgreens store in a high traffic area. My co workers are toxic. The demands on my mind and body are taxing my health.

Admittedly, I’m often feeling extremely exhausted and run down after a long shift and I’m not taking care of myself, either.

For the last three weeks, I’ve had flu like symptoms. Dizziness. Nausea. Headaches. Tiredness. Today I woke up with a minor pain in my left shoulder and a tired arm. I called out of work to rest and recuperate.

I’m going to the ER today, or early tomorrow morning to get checked out.

My question is, could my high stress job be pushing me into a heart attack state? Has anyone experienced the same thing as I am, or is it all in my head?