have you considered that the experience of the actual bad thing happening might inform what your memory of those dreams were? it could be something like this. you have one dream and a coincidence occurs and you appear to have predicted the event. then you start really, really believing you have this thing. this might fuel some strange dreams which are hard to define. then an event occurs and your perception of the dream shifts just the slightest amount so it seems like it was a real prediction.
"i" do experience stuff like this to lesser degrees and in different forms. "i'm" constantly interpreting everything to give it more meaning for "myself." this stuff could just be a way that the self is feeding, the self feeds on both negative and positive emotions, it does anything it can to perpetuate emotions, if you were afraid for some reason then every shadow can look like a monster, or if you are worried something bad might happen then every ambiguous sign may be interpreted sign of that thing happening.
this is becoming. i don't mean to invalidate your experience or belittle your suffering at all, i've had plenty of experiences where stuff sort of like this seems totally real, and you might have something more intense than i ever have had, but try considering that this stuff is all just the work of "you" as a self.
from a purely buddhist standpoint, the buddha specifically recommends that visions like this are distractions and shouldn't be given credence.
i heard some great advice in a different
thread given to someone dealing with the dark night. Jill suggested the following:
it sounds to me like you're going through your first dark night, not a second cycle. but whatever the case, if you've been practicing, anything new and unfamiliar is usually good news, no matter how bad it might feel--you're breaking new ground, making progress. a few things about the dark night:
you absolutely cannot trust your thoughts and feelings in the dark night ñanas, no matter how logical, sane, and true they may seem. the more you hold on to your ways of reasoning, interpreting, analyzing, judging, making conclusions, thinking, making sense of anything, the tougher the resistance you'll face. the mind is simply out of tune at the moment. i don't know what it technically involves (frequencies/energy/or what) but the mind is like a musical instrument with strings getting tuned but not yet in harmony, and sometimes you might think, well it's gotta be either this thought (a bit flat) or that thought (a bit sharp), and believing either one will get you nowhere because neither one is it. only when you let go of this complicated mind, let go of the need to know anything, and let the effects work themselves out (as josh mentioned) will things start tuning up.
think about it--what's the only thing you have that's totally fail-proof? the only way to stay perfectly clear from any kind of wrong view? how can you orient your mind so that there's not a chance you're gonna screw it up and generate new tensions, complications, or hindrances? the only thing you can really really trust is how things appear to your perception at the sense doors--feel that sensation, see that, hear that, taste that, smell that, notice that thought arise. those are your only faculties for direct knowledge and your express ticket for moving in the right direction, so keep your watch at the sense doors like a top guard dog, and every thought and feeling that arises concerning practice (that's not about paying attention to the senses) is potential bullshit and not to be trusted, and a waste of precious moments of practice opportunities.
possibly the worst way that the mind messes with you in the dark night is to make you think your practice is crappy and your efforts aren't going anywhere. towards the later dark night stages, what often happens is that the worse it feels and the harder it gets, the farther along you are, closer and closer to the tipping point before equanimity ñana.
make use of every second you have in your sits and daily life to pay attention to bare sensing without adding a single interpretation or analysis about what's going on. dump all your energy into paying attention to the present sensations more and more constantly, subtly, intensely, objectively (non-judging), and equanimously as possible. you can't waste one second of possible practice, things are already bad enough. stay vigilant, stay innocent/unknowing, stay determined, and everything will fall into place.
i know this doesn't apply directly to your case, but still, you may find it useful.
the buddha certainly implied that siddhis were a real and legitimate thing, that there are powers one can develop with one's mind. i'm not inclined to believe in them personally because i haven't had a convincing experience. but even the buddha himself who could apparently teleport around and keep himself from dying... he
still said that this stuff is a distraction
to be more clear, i'd suggest you keep practicing jhana to gain some general peace, keep up attention and abandon unskillful states of mind in which you are worrying about death and being negative.