I did also go through a period of acute "proper" insomnia in 2nd year Uni (age 21). I was getting maybe 2 hours of disrupted sleep a night ... was exhausted - just could not sleep. I can appreciate that insomnia is absolutely awful. I've had a couple of other minor bouts that lasted a couple of weeks, but nothing like that... it was genuinely about 2h sleep a night for well over 2 months
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