For what it's worth, I think you are an empath. And your English is fine.
I very much related to your self-doubt and questioning is it this or that, and not wanting to jump in and make assumptions that is is something out of the ordinary human range; or that it is not, perhaps, just some hyper-alertness c/- past trauma. I think it is helathy doubt. One doesn't want to fly off with the fairies and become entirely delusional, or ascribe paranormal explanations to things that have simple everyday explanations, or are in the normal human realm of discernment. It took me a long time to accept this thing was real, a very long time. I still wonder if I've just gone mad...
I don't particularly consciously 'read' people over the internet. I just pick up the overall feeling-tone and decide if I want to engage or not. What came to me was an immense but light sadness. Perhaps it is the sadness of not knowing if you fit in or not in the world. That's how it felt, a tired sadness. Life is very lonely and tiring, sometimes, particularly when you are doing other people's feelings for them against your own will,
Anyway, welcome. Hope you find some answers or verification for yourself here.