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Signs and symptoms include (but are not limited to): Extreme tiredness (fatigue) Tiredness / lack of energy Pale skin Numbness and / or tingling (paraesthesia) Feeling faint Noticeable heartbeat (palpitations) Feeling short of breath Loss of appetite Ringing in your ears (tinnitius) Unintended weight loss Changes in your vision A yellow tinge to the skin Depression Irritability Changes in the way you feel, behave, and think ('brain fog') A decline in mental function, such as changes to your memory, judgement and understanding (dementia) How long do B12 injections last
One source says 250mcg
Insertional tendinopathy requires injection slightly lower, in the subcutaneous tissue just above where the tendon attaches to the calcaneus
Customer Reviews Great Experience Overall Ryan Sullivan Verified Customer Illinois May 05, 2026 Share your experience Sign in or create an account to write a review
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