Hi Wackers and welcome to the A/P!
I am sorry to hear of your trouble with anxiety and symptoms.:(
However, the beta blocker should help with your increased heart rate. How long have you been taking your Rx?
Your symptoms do sound like anxiety, so along with your meds, I can recommend doing the coping skills in our Resources. (main page, 1st post) The breathing and progressive muscle relaxation as well as the meditation video are great at bringing down overall stress levels and symptoms.
Keep us posted as to how you are doing. We understand and care, and are here to support you during this time.
Scaredy Cat