Hello
No it is not normal and nor should you let it go.
See a nuerologist asap about this.
Have an MRI of the brain
Have B12 levels run along with other B vitamin levels, and an intracellular magnesium level.
Have any medications reviewed for this side effect.

Use a mediterranean diet..as it has been shown to help prevent memory loss.

Exercise.....
Very important.

Let me know if you have further questions, details or need clarification, just use reply.......

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