Imagine a person who has 'passive' precognitive abilities. During sleep, they dream of random future events-these can range from events that will happen in a few hours to events that will happen in a million years. During their waking hours, they 'remember' events that will happen in the next few days. They can force the ability to get a glimpse of the future, but it causes headaches and cramps that can seriously ruin their day
So for example, take Alice. On Monday night, she dreams of a future catastrophe where a massive meteor slams into the earth, from the point of view of a random person on the street.Next day, her friend Bob mentions a job interview and Alice sympathises on how badly it went for him- only for him to say it isn't going to happen until Saturday. She then tries to find out why it'll go badly, catches a snatch of their conversation and ends up with a nosebleed and a migraine.
What kind of effects would that have on a person's mental health, if they have the ability their whole lives? Assuming that the forward remembrances happen a couple of times a day and that the future is fixed- Bob's interview is going to go badly and he can't change that. The longer the time they try and look forwards, the longer and worse the pain- looking more than 10 years into the future causes fainting and can take over a week to recover from.