Wow Pete, so sorry to hear that. But the good thing is you were smart enough to get to the hospital and hopefully catch it in time.
I know exactly how you are feeling right now, I went through the same thing 20 years ago, I was only 43 at the time. Started having some "indigestion" pains in my chest and was looking for a waitress to get a gingerale to relieve it. Luckily, my then wife was an RN and she asked what was up. When I told her she forced me to go to the ER, I too was having a heart attack. They did angioplasty and I have been perfect for the past 20 years...........the same will happen for you.
Let me give you some advice. My Wife made me quit my job and sit on my butt for 6 months to give my heart a chance to heal. I was ready to go back to work the next Monday but she wouldn't let me. She probably saved my life. She also put me on a healthy diet and made me exercise, and when I would go in for followup stress tests I was in better shape than I had been before the attack.
I also started feeling like my life was over, I would reach to pickup something and my Sons would jump in and do it for me, it was like I was an invalid. That will pass too and you will start to regain your confidence. (Every time I would get a little pain in my chest it would scare me to death, and it was always a muscle ache or something not heart related, but it still scared me)
A year from now it will be like it never happened, you just got a good warning that you need to change some things in your lifestyle. And every year that passes you will get even better and have a stronger appreciation for life.
Please keep us posted on how things are going.........your friends on here want to know how you are.
Don