I think I had a heart attack on Thursday, sqeezing in my chest left arm and hand numb and felt like my head was getting smaller for about 20 minutes or so, I've had a mild pain in my shoulderand left arm today with my whole chest feeling heavy

And you need to THINK about going to an ER? I'd have called 911 on thurday as soon as I could punch in the numbers. I've always believed in better safe than sorry.

Its an urgent care, you don't have to wait at all to be seen.

How old are you?