Fever of Unknown Origin   Conditions with Similar Symptoms View Conditions   Drug Monographs Acetaminophen Aspirin Nonsteroidal Anti-inflammatory Drugs (NSAIDs)   Herb Monographs Echinacea Lemon Balm Yarrow   Supplement Monographs Vitamin C (Ascorbic Acid) Zinc   Learn More About Acupuncture Homeopathy Nutrition Western Herbalism	Look Up > Conditions > Fever of Unknown Origin > Symptoms Conditions with Similar Symptoms as Fever of Unknown Origin Below is a list of symptoms of this condition and the other conditions that could cause them.   chills Cancer, Lung Cellulitis Chronic Fatigue Syndrome Cough Diarrhea Endocarditis Food Poisoning Influenza Lyme Disease Mumps Pelvic Inflammatory Disease Pharyngitis Prostatitis Shock Skin Disorders, Photodermatitis Tuberculosis Urinary Tract Infection in Women Urolithiasis fever Alcoholism Angioedema Appendicitis Bronchitis Bursitis Cancer, Lung Candidiasis Cellulitis Chronic Fatigue Syndrome Common Cold Cough Crohn's Disease Cystic Fibrosis Diarrhea Diverticular Disease Endocarditis Food Poisoning Gout Headache, Sinus Hemophilia Hepatitis, Viral Herpes Simplex Virus Herpes Zoster (Varicella-Zoster) Virus HIV and AIDS Hyperthyroidism Influenza Insect Bites and Stings Laryngitis Leukemia Lyme Disease Lymphoma Measles Meningitis Mononucleosis Mumps Osteomyelitis Otitis Media Pancreatitis Pelvic Inflammatory Disease Pericarditis Pertussis Pharyngitis Prostatitis Radiation Damage Reiter's Syndrome Rheumatoid Arthritis Roseola Serum Sickness Sexually Transmitted Diseases Sinusitis Skin Disorders, Erythema Skin Disorders, Photodermatitis Spontaneous Abortion Systemic Lupus Erythematosus Thyroiditis Tuberculosis Ulcerative Colitis Urinary Tract Infection in Women Urolithiasis Wounds headache Allergic Rhinitis Amenorrhea Anaphylaxis Anemia Cancer, Bone Cancer, Brain Chronic Fatigue Syndrome Common Cold Dysmenorrhea Endocarditis Fibromyalgia Food Allergy Food Poisoning Glaucoma Headache, Migraine Headache, Sinus Headache, Tension Heat Exhaustion Hepatitis, Viral Herpes Simplex Virus Herpes Zoster (Varicella-Zoster) Virus HIV and AIDS Hypertension Hypoglycemia Hypoparathyroidism Hypothyroidism Influenza Lyme Disease Measles Meningitis Mononucleosis Motion Sickness Mumps Pharyngitis Premenstrual Syndrome (PMS) Radiation Damage Seizure Disorders Sinusitis Skin Disorders, Photodermatitis Sleep Apnea Stroke Systemic Lupus Erythematosus Temporomandibular Joint Dysfunction Transient Ischemic Attacks Tuberculosis malaise Candidiasis Cellulitis Cirrhosis of the Liver Diarrhea Endocarditis Heat Exhaustion Hepatitis, Viral Herpes Simplex Virus Herpes Zoster (Varicella-Zoster) Virus HIV and AIDS Laryngitis Lyme Disease Measles Motion Sickness Mumps Osteomyelitis Pericarditis Prostatitis Radiation Damage Reiter's Syndrome Rheumatoid Arthritis Serum Sickness Sinusitis Skin Disorders, Erythema Thyroiditis Tuberculosis Ulcerative Colitis myalgia Angioedema Chronic Fatigue Syndrome Food Poisoning Hepatitis, Viral Herpes Simplex Virus HIV and AIDS Lyme Disease Pericarditis Serum Sickness Sexually Transmitted Diseases