Serious Warning Signs Severe abdominal pain: Especially if sudden onset, radiating to back, or with vomiting (possible pancreatitis, occurred in 0.3% of patients) Severe vomiting: If unable to keep any fluids down for 24 hours (dehydration risk) Signs of dehydration: Dark urine, dizziness on standing, confusion, decreased urination (acute kidney injury risk) Vision changes: Blurred vision, eye pain (rare but requires evaluation) Rapid heart rate: Persistent heart rate over 100 at rest (some increase normal, average 2-4 bpm, but sustained tachycardia needs evaluation) Suicidal thoughts: Any thoughts of self-harm (under 1% occurrence but requires immediate support) Severe allergic reaction: Difficulty breathing, throat swelling, severe rash (anaphylaxis requires emergency care) Lump in neck: Especially with difficulty swallowing (thyroid concern, rare but part of class warning) Trust your instincts
This is the term for a nerve disorder that affects the spinal cord and peripheral nerves (nerves outside your brain and spinal cord)
Remove any air bubbles and then inject into the muscle
This helps doctors find and fix the problem fast, helping us feel better again
How To Give Yourself Vitamin B12 Shots You will need: B12 liquid sterile syringe sterile alcohol prep pads (or rubbing alcohol and clean swab/cotton balls) sharps container for disposing of the syringe Use a sterile pad to clean the area of your belly where you plan to do the injection
