Not just you. There's a well-documented pattern of big cat sightings across the Ozarks going back decades and the official line is always "escaped exotic pet" or "misidentification of a bobcat" which frankly doesn't hold up when you've got multiple witnesses describing an animal the size of a labrador but low-slung, jet black, long tail. That's not a bobcat.
I'm based in Rendlesham obviously so my background is more the forest here, but big cat phenomena follows remarkably similar patterns globally - the black colouration, the nocturnal activity peaks, the way they seem to vanish without leaving tracks you'd expect. Some researchers think there's something genuinely anomalous about certain sightings that goes beyond escaped pets.
What are the terrain conditions like where you're seeing these? Woodland edges, near water? And are you getting any secondary indicators - livestock disturbances, that specific musky smell witnesses sometimes report, unusual silence from other animals beforehand?
Would love to see any photos or even rough sketches of what you observed. The more data points we can collect on these the better.