Hi Kat.
I have decided not to take it at all.

As for the signs of a heart attack we have a little problem there.
I am a lifesaver and qualified in Advanced first aid, defib and oxyvivor use. I am well aware of the signs and symptoms.
But here is the problem.
# Tightness in chest
# Pain spreading to shoulders, neck or arm
# Feeling of heartburn or indigestion with or without nausea and vomiting
Indigestion or gas-like pain
# Discomfort/pain between shoulder blades
# Recurring chest discomfort
All of this I have on quite a regular basis due to AS I believe.
But because I know what the signs of heart attack are I then have panic atacks and start to experience all the classic symptoms.
I think my head is my own worst enemy.

The hard thing is working out what is normal (for me) and what is not. The rheumatologist said there is know way for me to tell the difference so I need to get it checked out whenever I experience it. And like I said, that is every other day. I am sure the ambulance will get sick of me, if not already.

In the past few months I have been checked for heart attack at least 8-10 times. All bloods and ecg have come back normal but I do have to be careful as I have a heart problem where I have bad pulpitations. My cardiologist said I have a problem with the electronics of my heart found this from having a holter monitor on for 24hrs. But it is not serious enough at this stage to require treatment.

My cholesterol is OK, I have low BP and low sugar most times but lately that has been pretty good. I am slightly overweight from medication for my endometriosis(sp) but not obese. I have until the past few weeks been very active with lifesaving and training and there is no history of heart problems in my family at all.
I do smoke though and have just decided to give up.
So overall I dont have that many risk factors.

I just dont have anyway to tell the difference between my normal symptoms and heart attack.
And like I said my head is my worst enemy I think.