I am wondering if B Complex vitamins can cause someone with anxiety and panic disorders to actually get increased symptoms from this? Along with having the anxiety disorders, I am also B12 deficient, so I take a B12 Vitamin every day. I found a new B12 that I wanted to try, but it also has Super B Complex in it. I took it for 4 days and my anxiety and panic levels shot through the roof, and made me have heart palpitations. This did not happen to me when I took the Vitamin B12 alone. I'm wondering if this has anything to do with adding in the B Complex since it didn't start until I added that in? I have not taken the vitamins for 2 days now, and it seems to be getting a little better, but how long will it take for the jitters and stuff to go away now? It feels like my anxiety med is not even working right now, that's how bad it is!