Toxicity and pH issues.

Don't flush her! (again!) Your soil doesn't seem to be so airy, so flushing maybe make the soil too wet, and could kill the roots. Also, are you watering with de-chlorinated water? I see no problem at your plant, maybe you are worrying too much! Just take easy with you plant and water only when she ask for it... Have a great grow!!!

Hey, bro! 👋 I think you caught a "bunny" with your camera and this "bunny" looks like a reflection of leaves with a darkish hue! 👆 In the 2nd photo, there's this "bunny." And in the 5th photo - everything looks great! Don't try to photograph the leaves at an angle to assess the girl's condition! Shoot from the top (keep the camera parallel to the pot's surface, point the lens at the plant from above), take pictures of the sides (keep the camera perpendicular to the pot's surface, point the lens at the plant from the side). This way, the assessment will be more effective, bro! 👆 Everything is great with you, don't worry! Happy growing! 👍 Good luck, my friend! ✊😇