Narcolepsy Support Group
A sleep disorder (somnipathy) is a disorder in the sleep patterns of a person or animal. Some sleep disorders can interfere with mental and emotional function. If you are having trouble falling asleep or having some other kind of sleep disturbance, this group is for you.
Now that being said, I do have minor suspicions that cat has been present for most of my life but to a such a small degree that I dismissed it. My knees would buckle. Although not as severe as yours do. Just briefly go out for a second in times of stress or surprise and I always could immediately recover. It wasn't until I was dealing with a personal emotional trauma that I actually had a cat attack strong enough to put me on the floor.