Never been to Winchester Mystery House myself, its a long way from Oxfordshire, but I've been following reports from that place for years and the pattern is consistent enough that I take it seriously.
What gets me is how many people independently report the same thing - a kind of pressure in certain rooms, like the air gets thick. That's not nothing. That's not people just spooking themselves because they know the history.
What did you actually experience? And whereabouts in the house? The staircase areas seem to come up a lot in what I've read. Would be good to map out if certain spots are more active than others rather than just vague "I felt weird" reports, which frankly aren't much use to anyone trying to build a proper picture of the place.