Seed?

Can not see any evidence to suggest it. The first clue would be dried up, shrivelled, brown pistils, of which there seem to be none in your photo, but photos taken under grow lights are really terrible to look at on a computer screen. In future, try always posting pictures taken under normal lights, they make life so much better!

a stigma retract when pollinated. looks fine to me. No unusual early coloration of stigmata... doesn't look like it is knocked up. it isn't unusual to get 1 or 2 seeds on a plant. if you don't see sacs or nanners in the room, i wouldn't worry.

Hard to see but I think I see what your looking at and I would say no.

It’s REALLY hard to tell in this light. Take one with normal Lighting