Hello Lullaby, anxiety is an insistent thing, isn't it? No matter how many reassurances we give ourselves, it's there to say "but what if, but what if". There are two ways of dealing with this, one is what you have done in writing out your post, weighing up the evidence of what is likely versus what your anxiety is telling you. Eventually this challenging should mean that your body eventually catches up with your logical brain and stops sending those panic signals through your system.
The second way of dealing with it is acceptance and distraction. You know these feelings running through you are the anxiety, and not based in truth. When you feel the panic rising, you can give it a name - "oh, there's the panic station calling", and then try and concentrate on an absorbing activity. I find physical activities, exercise, or something with your hands can help. So does talking with others such as posting here to talk through your worries. Best wishes to you.
