Just sitting i get feeling of sleepiness, what should i do?

sleepiness: Excessive sleepiness may be a symptom that can be very dangerous symptom due to the risk of accidents at work or driving etc. You can see how sleepy your are by googling ess and completing the scale. You may just need to be more active. If you need treatment start by seeing your primary care to clarify the cause. Causes might include shift work, sleep apnea, insomnia, medications, or narcolepsy.