For a couple of days now, I have felt dizzy/unbalanced and short of breath at random times.

You might think this is a definite cause for alarm, but I have had a long history of health anxiety with a wide range of symptoms, including dizziness just like this last year which I went to the ER for. They couldn't find anything wrong. 

If there was a way to tell FOR SURE these were anxiety symptoms, I wouldn't have this kind of anxiety, I know. But I just wondered if anyone had any tips for this kind of thing. Throughout the years I have had a ton of anxiety symptoms that I thought were signs of an impending medical crisis, but none of them have come to pass. 

How do you discern between real and anxiety symptoms??

The only saving grace right now is that the symptoms come and go...if it were "real", wouldn't it persist and get worse? idk.