Derelization

See a doctor.

Have you been diagnosed by a professional or did you self diagnose? I ask because a professional could help. B12 supplements are available at many retail outlets. But again, I ask how you know you are deficient?

Having finished my major in psychology nearly 50 years ago, my best advice is for you to consult a licensed psychiatrist. They are the ones who can prescribe for you.

Thanks, I am just really anxious as to whether or not I have something seriously wrong, and yes it was a self diagnosis I am too scared too see a doctor about this problem

Why are you scared? Get a physical ASAP. It sounds like your body and mind are not in sync.

Think about what you said.
If it is something serious, a doctor can help you overcome it
If it is not serious, a doctor can reassure you.
Either way, you win.
See a doctor.