My energy, mood and attitude just changed, I may have been really deficient now that I think about it
Always start with a professional consultation : The only way to determine the right B12 type, dosage, and schedule for you is by working with a professional who can assess your health, lifestyle, and specific goals to create a safe and personalized plan
I have heard that there may be a pill that I could take instead
NAD Injections vs B12: Which Works Faster
As to the aches and pains, breathlessness etc, this could be due to B12 needing potassium to build RBC, so I would check out low potassium symptoms and eat a banana or maybe two until you have fathomed it out
Can B12 help with anxiety