why are b12 injections not working Feeling worse after Injection: Answering concerns Feeling tired, foggy, or run-down?

This means U.S

Routes of Administration: Intravenous (IV) administration (likely primary use)

When pain lasts longer than a week, gets worse, limits your shoulder movement, or comes with swelling, weakness, numbness, or spreading redness, it may be a sign that something more serious happened during or after the injection

Much less common causes of spinal stenosis include: Pagets Disease (a bone disease that causes bone overgrowth and therefore narrows the spinal canal) Epidural Lipomatosis (an abnormal amount of fat is deposited in the spinal canal reducing the available space for the cord and nerves) Infection Tumour Symptoms of Spinal Stenosis Narrowing of the spinal canal can cause compression of the spinal nerves and, depending on the level of the stenosis, also compression of the spinal cord (remember the spinal cord usually ends at about the level of L1 and it then turns into the cauda equina nerves)