You should contact your GP or NHS 111 if you experience: Persistent diarrhoea lasting more than 7 days in otherwise healthy adults Blood or mucus in stools , which may indicate inflammatory bowel disease or infection Severe abdominal pain or cramping that is worsening or different from previous digestive symptoms Unexplained weight loss alongside bowel changes Signs of allergic reaction , including rash, itching, swelling, or difficulty breathing (call 999 or go to A&E for severe reactions) Neurological symptoms such as numbness, tingling, balance problems, or memory difficulties, which may indicate B12 deficiency is not being adequately treated Seek help sooner if you have red flag symptoms, are pregnant, immunosuppressed, elderly, or have significant underlying health conditions
B1, B2, B3, B5, B6 and B7), while B12 is less common
The symptoms of diet-related deficiency are easily avoided with a healthful diet
Gastrointestinal conditions such as celiac disease, Crohns disease or surgical changes like gastric bypass Older adults who may have reduced B12 absorption People who follow a strict vegetarian or vegan diet, as B12 is mainly found in animal-based foods People taking medications like PPIs or metformin or those with folate deficiency Real reddit experiences Below are some first-hand accounts from Reddit users: I was diagnosed with pernicious anemia after months of fatigue and neuropathy