Fig. 2

Percentages of d-lactic acidosis (d-la) episodes that reported ME/CFS matching and ambiguous/other neurological impairments. Total percentages are reported for neurocognitive symptoms (B1), pain (B2), sleep disturbance (B3), neurosensory and perceptual disturbances (B4a), motor disturbances (B4b), speech symptoms, and altered consciousness. N.B. The same episode may be represented multiple times for both matching and ambiguous/other symptom groups across all neurological impairment subcategories