First off, I know I need to go to a Dr. And I am aware no one can give medical advice.
I'm just so scared right now and need some reassuring. 
I'm 36F.
I've been dealing with anxiety and all thing anxiety related for the past 20y, but it's starting to kick my butt. My health anxiety has been absolute hell for me and I've convinced myself I have every deadly disease possible. I've learned to kind off differentiate between my anxiety and what is real but as soon as I have come to terms with something as just anxiety the next symptoms pops up. It's a unending battle.
So lately I've been having what I'm thinking is heart problems. I know it's a common anxiety symptom but this is just too real. 
I have what feels like left sided dull aching almost burning pains that come and go under my left breast. Then it kind of feels like it radiates to my back and shoulder. I have this spot on my back more to the left upper side that is sensitive. Feels like a aching muscle.my shoulder feels achy as well. This has been for a few days now.
I've convinced myself it's Angina. Then I just made lunch today and was cleaning up the kitchen when a sharp stabbing pain radiated in the centre of my chest twice. 

I'm dealing with all the anxiety related symptoms of fast heartbeat at times and what feels like missed beats for years. But this is just different.

Can these symptoms really be anxiety related if im not even in a state of anxiety? 

It's Sunday today so no Dr's are open and the closest hospital with a ER is more than a hour away. Small town problems.
I'm alone with only my children and the thought of me dropping in front of them is terrifying. Do I make the drive? Is this anxiety? Are these symptoms even anxiety related if I'm in a calm state. 

I've had a very stressful year so I know I've been stressed more than what I've ever been. But these symptoms just feel to real to just be anxiety?

My grandfather passed away from a heart attack and my brother passed away from a heart attack at 50. So I know I have a family history and that just makes it more scary.

Anxiety sucke. Can't I just have one normal day. This is debilitating. Never knowing what warrants a quick reaction and what is just anxiety related.