Do doctors prescribe this med for anxiet

I have heart rate issues most of it is uncomfortable and uncontrollable now, however was started by anxiety a few years ago. However if there's something that's genuinely hard to manage is severe anxiety. It's so severe it ruins my life everyday and its really really bad. I was prescribed Trimetazidine(new) with bisoprolol (taking for almost a year now due to propranolol fail and it helped alot for a while) by my doctor after trying so many different meds from different doctors. My usual symptoms are. Palpitations, extremely severe anxiety, Vertigo like symptoms, Lips tingling, whooshing in ears after streanous exercise, breathing issues with stairs specifically (this is episodic it doesn't happen every time but it does happen often). I do have b12 deficiency which is also the med i take everyday. Is this a normal thing? Can this med be harmful after a 1 month course? What side effect symptoms should i keep an eye on?