Metoprolol works for me, I've had covid twice I hand syncopy before covid as well as 2 heart attacks, I got off Metoprolol about 1 year before I caught covid ,in 2020 then got 2 Moderna vaccines then Aug 2022 got infected with omnicron then in about 6 months started long covid ,nerological and gi symptoms, stomach pain with gas,constipation lost 27 lbs blood pressure started bouncing all over the place put me in the hospital twice my syncope was out of control I put myself back on my metoprolol just 25 mg is all it took to calm me down again beta blockers really help me with my covid symptoms it really helps against my hyperthyroidism also. take lots of probioticts lots of yogurt do not miss a day I also take a plant based protein powder I mix it with a supplement drink like atkins or equivalent, I found a good mineral supplement works great take that with your protein drink covid seems to have lnflamed my organs my eyes ,stomach, thyroid ,my gi system is a mess I have got alot better since I have figured out what to do don't take vitamin pills it worsen's my inflammation well good luck these are trying times.