I feel that way at times. Afraid that I am at times taking away with thinking how I like things to be versus how they really are.
I know personally that I have had experiences that others would deem abnormal(psychotic).
Nevertheless I can't help but feel content that each one experience's life in their own unique way and that it is ultimately up to us to appreciate that uniqueness .

I too have obsessed over someone whom I knew next to nothing about. And the question to be honest did arise in my mind whether or not some would consider things I did as stalking.

I think that the difference between reality and fantasy remains somewhat obscure (for the majority of the population) and is one that in the end is a matter of one's personal interpetaion.

I hope things work out for you.