This reminds me of someone hearing a song in the morning and then you cannot get it out of your mind...just drives you crazy. I might be wrong, but when you find out you have a problem, like an AN, everything else that happens becomes a symptom. Just can't get that AN out of your mind. I know, because I've been there.
My wife just had a bunion removed two weeks ago, and she was laid up for about a week. Everything that went wrong was a symptom of her surgery. Just could not get that bunion out of her mind.
Here is my experience. Just like you, when I found out I had an AN, that had to be the reason all types of things were happening. It scared me. I was reassured by posters here that what I was experiencing was pretty routine. Keep a log about your daily routines. Exercise, diet, time of day, etc and see if you can tie anything together. It might be something real, or it could just be in your mind. Darn that AN.
I am 64 years old and have been athletic all my life. I had a stroke at age 59 because of a hole in my heart (PFO). I had a heart surgery one month later and could not exercise for six months. While driving to my last visit to see my heart surgeon, my doctor called me and said I have an AN. My surgeon said my heart was healthy enough to exercise, and I got started when I got home that afternoon. Six months later I had my AN surgery. My exercise never gave me any problems. It was a real benefit. You will recover much faster because you are in shape. Just keep working out.
You will learn to deal with your AN over a period of time. Darn that stupid song...it will go away after a while!