The most common early indicator is reduced shedding
BBB dysfunction was not apparent in patients with anosmia without accompanying brain fog implying this might not be a major driver of this symptom

PRESCRIPTIVE B12 VERSUS NON PRESCRIPTIVE B12 PRESCRIPTION B12 Hydroxocobalamin NICE-recommended form used by the NHS Prescribed by a GMC or NMC-registered medical practitioner Medical consultation required your safety is assessed first Same clinical standard as your GP Longer-lasting and more stable in the body No cyanide content Administered by a qualified medical professional using correct technique Monitored and reviewed protocol adjusted to your individual needs Private blood testing available to confirm deficiency and track response Legal, compliant and fully documented prescription NON-PRESCRIPTION B12 Often cyanocobalamin cheaper synthetic form not recommended by NICE Not prescribed no prescriber involved No medical consultation or safety assessment required Not the same standard as your GP Shorter-acting and less stable Contains a small amount of cyanide the body must detoxify Administered by non-medical staff with no clinical oversight No monitoring, no review, no adjusted protocol No blood testing deficiency not confirmed No legal prescription grey area of compliance VITAMIN B12 FAQS Vitamin B12 Injection FAQs What is the difference between hydroxocobalamin and cyanocobalamin

USA 107 , 34413446 (2010)
The symptoms of partial patellar tendon tear include the following: A sudden tear or pop in the knee at the time of injury, which others may hear too Swelling around the knee area Bruising at the site of injury Soreness around the patellar tendon and knee joint Knee instability Tightness in the knee area Pain and discomfort with movement e.g., when bending or straightening the leg, jumping, squatting, and running for extended periods of activity Decreased range of motion due to pain Who is at Risk of a Patellar Tendon Tear