Could taking Methycobal 500mcg for two months be causing my symptoms of tingling fingers, tiredness, muscle weakness, trouble walking, shaking in my eyes and face when I wake up, and difficulty focusing on people's eyes when I talk to them?
Methycobal, which is methylcobalamin (Vitamin B12), is highly unlikely to be the cause of your symptoms. In fact, this medicine is typically prescribed to help treat nerve tingling, weakness, and fatigue. The symptoms you described?including muscle weakness, difficulty walking, and facial shaking?suggest there may be an underlying neurological issue or an unresolved deficiency that needs closer attention. Please be reassured that these symptoms can be properly investigated. I highly recommend scheduling an appointment with your healthcare provider or a neurologist soon so they can evaluate you and help you feel better.