Symptoms of Cyclical Vomiting Syndrome
Symptoms of cyclical vomiting syndrome are defined by recurring episodes that follow a consistent pattern. Between episodes, individuals are typically healthy, which helps differentiate cyclical vomiting syndrome from other chronic gastrointestinal conditions.
Phases of the Condition
CVS typically presents in four distinct phases:
1. Prodrome Phase
This is the warning stage before vomiting begins:
Nausea
Abdominal pain
Fatigue or lethargy
Pallor or sweating
Children may become irritable, while adults may recognise a familiar feeling that an episode is about to start. This stage may last minutes to hours.
2. Vomiting Phase | Symptoms of Cyclical Vomiting Syndrome
The hallmark of CVS:
Frequent vomiting, often several times per hour
Vomiting may persist for hours to days
Inability to retain fluids or food
Dehydration, leading to dizziness, dry mouth, and weakness
Abdominal pain, sometimes severe
In many cases, hospitalisation is required for rehydration and symptom control.
3. Recovery Phase
Once vomiting stops:
The individual feels exhausted and weak
Appetite gradually returns
Symptoms resolve completely within hours to a day
4. Well Phase
This is the symptom-free period between episodes:
Can last days, weeks, or months
Individuals feel and behave normally
Duration varies depending on the success of management and trigger avoidance
Associated Symptoms
Pale skin
Increased salivation
Fever (in some cases)
Sensitivity to light or sound (similar to migraines)
In children, behavioural changes like clinginess or irritability may occur
In summary, symptoms of cyclical vomiting syndrome are intense but cyclical, with distinct phases and long symptom-free intervals. Recognising the pattern helps in early diagnosis and effective treatment.
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