Hair loss, loss of appetite and fatigue: what to know

These symptoms may follow an infection, reduced food intake, emotional strain, or a problem affecting digestion or general health. COVID-19 and Influenza can reduce appetite and leave someone tired while the body recovers. Depression may affect appetite, energy and self-care. Gastritis, Gastroenteritis, Hepatitis A or Peptic Ulcer can make eating uncomfortable or cause nausea. Pancreatic Cancer is another condition a clinician may consider when appetite loss persists with other concerning changes; these symptoms alone do not identify a diagnosis.

Hair shedding can become noticeable after illness, major stress, weight change or inadequate nutrition, often with a delay. Tell the clinician when each symptom began, whether weight is changing, and whether the hair loss is diffuse or in patches.

Keep a brief record of meals, fluids, energy, bowel symptoms, fever and the amount or pattern of shedding. Choose small, regular meals with protein and energy-dense foods if tolerated, and sip fluids. Avoid starting high-dose supplements or restrictive diets before assessment. Arrange a primary-care appointment if the symptoms persist, recur, or interfere with eating, work or daily activities. The clinician may review medicines, examine the scalp and abdomen, and decide whether blood tests are appropriate.

Seek urgent medical help for fainting, confusion, severe weakness, trouble breathing, chest pain, vomiting that prevents fluids, blood in vomit or stool, black stools, or yellowing of the skin or eyes. Prompt assessment is also needed for rapid unexplained weight loss, severe abdominal pain, dehydration, or a new neurological symptom. Do not wait for hair loss to settle if appetite loss is stopping you from maintaining fluids or nourishment.

Could my symptoms fit an infection, nutritional problem, medicine effect or digestive condition? Does the hair pattern suggest shedding from a recent illness or a scalp disorder? Which examination or blood tests would clarify the cause? What changes should make me seek help sooner?