Well i must say. Before i treated lyme, babs and bart with heavy long term antibiotics I went to the emergeny room almost 25 times, thinking i was having a heart attack. Then i thought i had lymphoma, then i thought i had multiple sclerosis, then i swore my heart wasn't working, then i thought my liver was on it's way out.
I don't think the rapid heart beats, panic, palpitations, body tingling etc are going to go away until you tackle this more aggressively. Herbs do have their place but sometimes they are just not enough.