- Details
- Last Updated: 29 November 2015 29 November 2015
1. Most Common Symptoms of ME/CFS
- Exhaustion, made worse by physical exercise (100%)
- Low-grade fever in early stages (60-95%)
- Recurrent flu-like illness (75%)
- Frequent pharyngitis (sore throats) (50-75%)
- Joint and muscle pain (65%)
- Severe muscle weakness (40-70%)
- Stiffness (50-60%)
- Post-exertional fatigue & flu-like symptoms (50-60%)
- Multiple sensitivities to medicines, foods, and chemicals (40-60%)
- Severe nasal & other allergies (often with worsening of previous mild allergies) (40-60%)
- Frequently recurring, difficult to treat respiratory infections (40-60%)
- Dyspnea (labored breathing or hunger for air) on exertion
- Painful lymph nodes (especially on neck and under arms) (30-40%)
2. Neurological Symptoms
- Sleep disorders & unrefreshing sleep (50-90%)
- Headaches (35-85%)
- Visual blurring (50-60%)
- Intolerance of bright lights
- Parasthesias (numbness or tingling feelings) (30-50%)
- Dizziness/ Lightheadedness (30-50%)
- Ringing in the ears
- Impaired cognition (50-85%)
- Attentional difficulties
- Calculation difficulties
- Memory disturbance
- Spatial disorientation
- Saying the wrong word
3. Other Symptoms
- Worsening of premenstrual symptoms (70% of women)
- Nocturia (excessive urination during the night) (50-60%)
- Tachycardia (abnormal rapid heart action) (40-50%)
- Chest pain (25-40%)
- Cough (30-40%)
- Weight gain (50-70%)
- Nausea, especially in earlier stages (50-60%)
- Diarrhea, intestinal gas or irritable bowel (50%)
- Intolerance of alcohol
- Night sweats (30-50%)
- Dry eyes (30-40%)
- Dry mouth (30-40%)
- Rash (30-40%)
- Frequent cancer sores (30-40%)
- Herpes simplex or shingles (20%)
- Symptoms worsened by extremes in temperature
4. Less Common Symptoms
- Mitral valve prolapse
- Paralysis
- Seizures
- Blackouts
5. Psychological symptoms
- Depression (reactive or secondary depression)
- Anxiety (including panic attacks and personality changes)
- Emotional lability (mood swings)
- Psychosis
The above information was compiled by Massachusetts CFIDS/ME & FM Association from data by Drs. Paul R. Cheney, Jay A. Goldstein, Anthony L. Komaroff, Charles Lapp, and Daniel Peterson.
Notice about names
The Massachusetts ME/CFS & FM Association would like to clarify the use of the various acronyms for Chronic Fatigue Syndrome (CFS), Chronic Fatigue & Immune Dysfunction Syndrome (CFIDS) and Myalgic Encephalomyelitis (ME) on this site. When we generate our own articles on the illness, we will refer to it as ME/CFS, the term now generally used in the United States. When we are reporting on someone else’s report, we will use the term they use. The National Institutes of Health (NIH) and other federal agencies, including the CDC, are currently using ME/CFS.
Massachusetts ME/CFS & FM Association changed its name in July, 2018, to reflect this consensus.