There was symptomatic improvement in her signs of fatigue. [ncbi.nlm.nih.gov]

We ask about general symptoms (anxious mood, depressed mood, fatigue, pain, and stress) regardless of condition. Last updated: January 31, 2019 [patientslikeme.com]

Symptoms such as fatigue, hair loss and restless legs syndrome decrease quality of life; furthermore it results in impaired physical and cognitive development and poor pregnancy outcome. [thieme-connect.com]

Histamine excess can cause diarrhea as can bacterial overgrowth or LC. We present a 57-year-old woman with diarrhea, sporadic epigastric pain, and bloating. [ncbi.nlm.nih.gov]

The presence and the frequency of GI symptoms (heartburn, regurgitation, early satiety, nausea, vomiting, postprandial fullness, epigastric pain, abdominal pain, constipation, diarrhea, and bloating) were assessed at the time of the first visit through [journals.lww.com]

OBJECTIVES: Patients with autoimmune gastritis may have symptoms suggestive of delayed gastric emptying. [ncbi.nlm.nih.gov]

gastric emptying (80%), reflux symptoms (25%), peripheral neuropathy (25% cases), autonomic abnormalities and memory loss are less common and occur in 1%–2% of cases. [en.wikipedia.org]

Anemia (irrespective of etiology) results in shortness of breath, dizziness, tachycardia, lightheadedness, and decreased cognitive and physical function. In pregnancy it can lead to poor pregnancy outcome with early birth and underweight newborns. [ncbi.nlm.nih.gov]

Autoimmune atrophic gastritis is characterized by megaloblastic anemia, anorexia with weight loss, neurologic changes such as numbness and paresthesias. [patientslikeme.com]

which is characterized by the following symptoms: Weakness Trouble concentrating Shortness of breath Leg cramps Headache Heart palpitations Insomnia Paleness In severe cases, severe B12 deficiency, which is characterized by the following symptoms: Paresthesia [beyondtype1.org]

[…] spasticity (hyperreflexia) Positive Romberg sign Lhermitte’s sign Segmental cutaneous sensory level Autonomic nervous system Postural hypotension Incontinence Impotence Peripheral nervous system Cutaneous sensory loss Hyporeflexia symmetric weakness Paresthesias [wjgnet.com]

The initial symptoms include paresthesia and numbness of the lower extremities. [dovepress.com]

Anemia (irrespective of etiology) results in shortness of breath, dizziness, tachycardia, lightheadedness, and decreased cognitive and physical function. In pregnancy it can lead to poor pregnancy outcome with early birth and underweight newborns. [ncbi.nlm.nih.gov]

[…] symptoms, patients who developed vitamin B12 deficiency will suffer from gastrointestinal and neurological complaints such as malabsorption, diarrhea, weight loss, glossitis, peripheral numbness, paresthesia with subsequent development of weakness, and ataxia [ncbi.nlm.nih.gov]

Furthermore, mental disturbances ranging from forgetfulness to psychosis may arise. Untreated pernicious anemia is fatal [ 11 ]. [ncbi.nlm.nih.gov]

Lab: classically considered to have macrocytic anemia; however, normocytic and microcystic more common.[2] Etiology: autoimmune. Diagnosis based on serology for antibodies to:[3] Parietal cells. Intrinsic factor. [librepathology.org]

Among the 69 patients who were positive for PCA only, 36 (52.2%) had microcytic, and 33 (47.8%) had macrocytic anemia. [hindawi.com]

Pernicious anemia (PA), the macrocytic anemia also termed as Biermers disease or Addisonian anemia is an autoimmune disorder. [casereports.in]

Of the 83 subjects with microcytic anemia, only 18 (22%) were men compared with 35 of 77 (46%) for all other groups combined (χ 2 0.0001). [bloodjournal.org]

As expected, the prevalence of microcytic anemia decreased whereas that of macrocytic PA increased with increasing age of patients (data not shown). [jamanetwork.com]

In the 14 patients with positivity for both PCA and IFA, microcytic anemia was present in 4 cases (28.6%) and macrocytic anemia in 10 cases (71.4%). [hindawi.com]

The study of Hershko et al. has also shown a high prevalence of H. pylori positivity in young patients with AIG and microcytic anemia. [frontiersin.org]

In a study by Hershko et al[24] low serum vitamin B12 levels were found in 100% macrocytic, 92% normocytic and 46% microcytic patients with CAAG, whereas iron deficiency was found in all the patients with microcytic anemia, but also in 50% of the normocytic [wjgnet.com]

Besides loss of iron, decreased iron absorption is causative of iron deficiency. This might be due to inflammation at the site of iron uptake, which is found in Crohn’s disease and also coeliac disease. [ncbi.nlm.nih.gov]

Peripheral blood smear showed erythropenia, macrocytic normochromic red blood cells, moderate aniso-poikilocytosis with good number of macro-ovalocytes, leucocytopenia and mild thrombocytopenia, features consistent with pancytopenia and macrocytic anemia [casereports.in]