Never been to Forsyth County personally but the Remington Mill keeps coming up in accounts I've catalogued over the years. Three separate people have described the same thing in that basement - a kind of pressure change before anything visual happens. Like your ears pop. That detail isn't in any of the tourist write-ups or the usual ghost hunting blogs so when strangers report it independently it carries weight.
The original mill was built on a flood plain which matters more than people realise. Standing water, saturated ground, certain geological conditions - they crop up repeatedly in genuine time slip and residual haunt cases. Norfolk is full of that sort of terrain and I've had experiences here that I wouldn't have believed coming from someone else.
What specifically felt off to you down there? Was it temperature, sound, something visual, or more of a feeling you couldn't pin to anything concrete. The vague ones are sometimes the most interesting because people haven't dressed them up yet.