Perhaps you are thinking of Tourette's syndrome.
Hypercondriac
stress called almaicia or just a illness they have
No. That's called fantasy.
velocitation
You may be a hypochondriac.
Affected by illness they unable to leave from bed called bedfast.
That actually depends upon what it is that you are using. If you use someone's car without permission, that is called stealing. If you use someone's movie without permission, that is called piracy. If you use someone's body without permission, that is called rape.
Incubation.
A person who believes they are sick or even creates illnesses, is often called a hypochondriac.
If you give someone something without asking for anything in return it's called a gift. If you do something for someone without asking for anything in return it's called a favour.
People can develop a mental illness called insomnia which means they can't sleep without drugs, so I guess it is theoretically possible for someone to sleep for 3 months but personally, I have never heard of that happening to anyone.
Faking illness to avoid work is called malingering. It comes from the French word, malingre which means sickly. Someone who does this is called a malingerer.