can b12 injections make you jittery Feeling shaky, restless, or anxious after taking a vitamin? Learn why some supplements may cause jitteriness, which ingredients are most often responsible, and how factors like B vitamins, niacin, caffeine, and supplement Why do I feel worse

It should be firmly twisted on with no visible gaps Avoid over-tightening, which can damage the hub or create hairline cracks particularly in glass syringes where the Luer-Lok is glued onto the syringe Only use manufacturer-approved needle replacements Never force product through a blocked needle

If you want to be treated as a provider, you do not need to complete an enrollment process

Like any surgery, there are some risks involved, but it is usually safe if your doctor has recommended it

Most NHS prescriptions cost over 29/month

The deficiency is also common in people who follow a vegetarian or vegan diet, as B12 is only found naturally in animal foods

Liverpool: Liverpool John Moores University