Yeah there is evidence of high nitrogen ( claw , deep green ) ..
Stop flushing ... It wont remove whats in the plant already. Just let her use up what it can , just let container spend a few days drying back to a normal routine ... You have a few weeks to go ( lots of tall standing pistils ) ... They havent receded back yet.
Check triches ( calyx ) not just leaf.
Once its ready to water ( dry ) ... Feed her a 1/2 feed of bloom to keep her happy .
At harvest time ... Forget flushing again ( no need for it )
Feed her for a few more times then water only during last 2 weeks.
Then " Choppity Chop ".