MCS - what are the symptoms of

From DoctorMyhill
Jump to navigation Jump to search

[UPDATED MARCH 2023]

Please see these pages too

So, what are the symptoms?

Multiple chemical sensitivity is the great mimic. It can produce almost any symptom. Professor Claudia Miller gives the following list of general symptoms in her paper "Toxicant-induced loss of tolerance".

See Toxicant-induced loss of tolerance


  • Neuromuscular Cardiac
  • Loss of consciousness Heart pounding
  • Stumbling/dragging foot Rapid heart rate
  • Seizures Irregular heart rate
  • Print moving/vibrating on page Chest discomfort
  • Feeling off balance Affective
  • Tingling in fingers/toes Feeling tense/nervous
  • Double vision Uncontrollable crying
  • Muscle jerking Feeling irritable/edgy
  • Fainting Depressed feelings
  • Numbness in fingers/toes Thoughts of suicide
  • Clumsiness Nerves feel like vibrating
  • Problems focusing eyes Sudden rage
  • Cold or blue nails/fingers Loss of motivation
  • Uncontrollable sleepiness Trembling hands
  • Head-related Insomnia
  • Head fullness/pressure Airway
  • Tender face/sinuses Cough
  • Sinus infections Bronchitis
  • Tightness in face/scalp Asthma or wheezing
  • Brainfeels swollen Post nasal drainage
  • Ringing in ears Excessive mucus production
  • Headache Shortness of breath
  • Feeling groggy Eye burning/irritation
  • Musculoskeletal Susceptible to infections
  • Joint pain Dry eyes
  • Muscle aches Enlarged/tender lymph nodes
  • Weak legs Hoarseness
  • Weak arms Cognitive
  • General stiffness Memory difficulties
  • Cramps in toes/legs Problems with spelling
  • Painful trigger points Slowed responses
  • Gastrointestinal Problems with arithmetic
  • Abdominal gas Problems with handwriting
  • Foul gas Difficult concentration
  • Problems digesting food Difficulty making decisions
  • Abdominal swelling/bloating Speech difficulty
  • Foul burping Feelings of unreality/spacey
  • Diarrhoea Other
  • Abdominal pain/cramping Feeling tired/lethargic
  • Constipation Dizziness/lightheadedness

Most common symptoms

My experience is that the most common systemic symptoms are foggy brain (inability to think clearly), headache, fatigue and dizzy spells. The most common local symptoms are rhinitis (runny nose), conjunctivitis (itchy eyes) and asthma .


Sarah Myhill Limited :: Registered in England and Wales :: Registration No. 4545198
Registered Office: Upper Weston, Llangunllo, Knighton, Powys, Wales LD7 1SL, UK. Tel 01547 550331 | Fax 01547 550339