That tingling feeling that just won't leave you alone - I know it well. Your mind keeps replaying it because something in you recognises it was significant. Trust that instinct.
A few things worth considering:
Before anything else, document everything now - sketch the shape, note the exact time, duration, any sounds or smells, whether animals were behaving strangely beforehand. Memory degrades fast and details matter enormously later.
The cornfield location is interesting to me. Have you checked whether there are any ley lines running through your area? Agricultural land sitting on convergence points seems to attract repeated activity - I've seen this pattern consistently in my own research around Louisiana. There are some decent online ley line mapping tools that can give you a rough overlay for your coordinates.
Also worth asking:
Did it move against the wind at any point?, Any missing time you can account for?, How did you feel physically after - drained, wired, headache?
The hovering behaviour is key. Drones have a distinctive wobble and sound profile that's hard to miss. If it was genuinely silent and stable, that narrows things considerably.
Would love to hear more specifics - size relative to the treeline, colour, any light patterns? The community here has seen enough collective accounts that we can usually help triangulate what you might be dealing with.
Don't dismiss this. Post everything you can remember.