In this case you may experience symptoms including: Weakness, tiredness, or lightheadedness Heart palpitations and shortness of breath Pale skin A smooth tongue Constipation, diarrhea, loss of appetite, gas Numbness or tingling, problems walking Vision loss Experiencing depression, memory loss, or behavioral changes Those who are deficient but not anemic may also experience symptoms, such as: Fatigue & weakness Low moods Decreased concentration level Loss of appetite Constipation Poor memory How to Increase your B-12 Thankfully, there are a few ways you can get the essential vitamin into your body to help improve your overall body function
Your hands and feet might become numb or tingly, a sign of nerve problems
Instead, insert the needle at a 45-degree angle into the peptide vial's rubber stopper, then tilt the vial so the needle tip touches the glass wall
Bottom line Existing evidence comparing oral with IM vitamin B12 is suboptimal