is it true that people that are prone to nightmares have "bad trips" on drugs?

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i had a friend that was experienced when it came to drugs and he said that people that are prone to having nightmares or night terrors have really BAD trips when they do hallucinogen drugs (lsd, acid, etc etc) because their brains are already capable of horror and that they are more likely to go to that same creative area when on drugs.. now this is only what some one told me.. i have never done drugs.. (street drugs believe it or not lol) so i wouldnt know if he is right or not which is why im asking lol.. is it true?? had you noticed the same or seen people have the same?? i have nightmares that rival ANY horror movie there is and i go through spells where i will have nightmares nightly for like a month straight.. so if there is any truth to it i am SOOOOOOO never going near any drugs like that!!! i do know that i hallucinate on aspartame or artificial sweeteners and though it didnt last long the whole freaking out seeing things and feeling things touch and attack me wasnt fun lol.. although hubby did get a laugh out of seeing it since neither of us knew what the heck was causing it until we looked at the pepsi one drink i was chugging beforehand!! so is there any truth??