can’t get an angiogram done. chances of heart attack, wondering about symptoms

i am a male in my 20’s; my cardiologist will not let me have an angiogram done as of now. for those of you who have had a heart attack i was wondering if you can read my post posted on the cardiophobias subreddit and let me know if you experienced anything similar. i would post it on here but it usually gets deleted by the mods when people post about symptoms on here. im very worried about having a cardiac event soon because of my symptoms. here is a link to my post. https://www.reddit.com/r/Cardiophobias/s/wDmX3HrOhn