Also Flora. I had a bunch of experiences about a year or so ago, where some surreal things were happening to me (I posted about them on here a bit). I didn't feel I was hallucinating, and the experiences seemed to be real. Strange coincidences, and it seemed like a loved one was reading my mind, etc. Some bizarre stuff. However, at the same time, I knew I was physically unwell.
Although I don't think the experiences were hallucinations . And the person involved agreed that some of the facts I had observed had actually happened - it's just that they disagreed with me as to my interpretation of those facts. So I knew I wasn't hallucinating or imagining those things.
HOWEVER, I also knew that the fact that I was physically unwell was somehow precipitating those strange things. So it seems to me that, if you are not well in yourself, then you can be a sort of magnet for strange and unpleasant occurrences. The point is, if this sounds familiar to you, then perhaps your solution does not lie in the direction of trying to 'solve' the mystery. Perhaps it lies in the direction of getting yourself well (whatever that means for you).
I don't know what your health situation is, but I'm just telling you what I experienced, in case it rings any bells with you. If you are unwell in some way, or have a chronically bad sleeping pattern or eating habits, or if you are drinking too much, or not exercising enough, or whatever, then that can have a big impact on what you attract to yourself in life, in my opinion. If that fits your situation, you might be better off addressing THAT than worrying about people who are trolling you on the internet. You might just find that that situation goes away if you fix whatever else is going on in your life.