changing nutes during flowering??

so my plant is almost on its 4th week in flowering and the leaves on the top and middle are curling.i heard it was because im using nutes with too much nitrogen.so i was thinking about switching over to bloom humboldt nutrients. do you think this will help? i already gave my plant a flush.

Wouldn't hurt to try! A heavy diluted solution of course

yea well it actually could.the leaves are getting better since i gave it a flush 3 days ago and haven't watered or gave it any nutes since.