Multivitamin and helping anxiety question

Hi. I am a 27 year old Male who has had anxiety and panic disorder since I was a little child. I have taking every drug the doctors have given me and nothing ever works. I recently started taking a multivitamin for basically no reason other than I changed my diet and thought I was not getting enough vitamins, but eating less helped my anxiety. So I started. A few weeks in I realized my anxiety level was soooo much lower and had basically no idea, didn't think about it being the multi, then they stopped stocking or making the one I used, so I stopped taking it. Almost instantly a few days in my irritability was super high and I felt tense and overly aware and alert, then I started developing problems with muscle weakness and twitching, ai have winced started a different multi but I don't feel like I did on the other one. Tho it is improved from nothing. What vitamin could be causing this? From my basic research I kinda thought it was b12 at first but I started taking a dedicated B12 and it seems to have made things worse. So now I am lost, currently I am taking b12, d3, and magnesium. I feel very shaky and weak but mentally okay ish. Any advice would be helpful thank you. I felt like I was close to finally be free from anxiety 😅