sleepiness, yawning, loss of appetite, and increased salivation.[1] Occasionally tiredness can last for hours to days an episode of motion sickness, known as "sopite syndrome
[en.wikipedia.org]
Other symptoms that occur as the condition progresses include:- Feelings of weakness, fatigue and tiredness There may be mood swings, irritability lack of initiative and apathy
[news-medical.net]
Motion sickness is a syndrome of nausea and vomiting, pallor, sweating, headache, dizziness, malaise, increased salivation, apathy, drowsiness, belching, hyperventilation,
[bmj.com]