Table 1.

New Items added to the DSQ-2.

Items from the ME-ICC case definition and primer

Feeling disoriented

Slowed speech

Difficulty reading (dyslexia) after mild physical or mental activity

Aching of the eyes or behind the eyes

Sensitivity to pain

Pressure on parts of your body causes pain in other parts of your body

Daytime drowsiness

Sensitivity to vibration

Poor coordination

Sinus infections

Urinary urgency

Waking up at night because you need to urinate

Inability to tolerate an upright position

Fluctuations in temperature throughout the day

Items revised that better approximated the ME-ICC case definition

Intolerance to extremes of temperature

Viral infections with prolonged recovery periods

Items added due to findings related to orthostatic intolerance and mold sensitivity

Heart beats quickly after standing

Blurred or tunnel vision after standing

Graying or blacking out after standing,

Sensitivity to mold

Items based on Ramsay (36)

Muscle fatigue after mild physical activity

Worsening of symptoms after mild physical activity

Worsening of symptoms after mild mental activity

Items added based upon patient feedback

Since the onset of your fatigue/energy related illness

Have you stopped getting sick with colds or flus

Item added in concordance with the Energy Envelope Theory

If you were to engage in exercise or vigorous activity, would you

feel physically drained or sick?

Revised double-barreled questions

Unable to focus vision

Unablle to focus attention

Losing weight without trying

Gaining weight without trying

Issue of alcohol intolerance

What would occur if you were to drink alcohol