About 3 days ago I had my first heart palpitation that made me dizzy and light-headed for a few seconds. Since then my anxiety has been through the roof. I am always anxious about more heart palpitations which causes shortness of breath, panic attacks, and my heart races 24/7 which is a vicious cycle that I can't seem to shake off. I know its harmless but my mind can't seem to realize that. I've been taking propranolol that I had for social anxiety so it hasn't been that bad but I can't help but worry if this is how my life is gonna be from now on. I am wondering if anyone has a similar experience to mine and if its possible to convince my subconscious mind that I am perfectly healthy.