Oh, please don't worry too much about the panic/anxiety related stuff. For me it really eased with age. I know how you feel and it really sucks! I learned how to tell if anxiety or a panic attack was coming on and talked myself out of it. I also did a lot of deep breathing and relaxation exercises.
Perhaps you can find a therapist to help. I did not use any medication to get over it. I still (36 years old) get anxious sometimes, but I find if I reassure myself that it is the anxiety and I'm not in fact dying than I tend to snap out of it.
I have some herbs in my garden that I make a tea from and it really helps. Some herbs are valarian, feaverfew, mint, camomile, catmint, and balm.
I hope that you will be feeling better soon.