Nitrogen Toxicity?

So i think my plant is overdosing on nitrogen a lil bit. Its my first grow and Im using Jacks Classic nutes. Its just starting about 3rd week of flower.
The top leaves are really dark green and feel a bit soggy and new growth is curling a bit and some fans are showing small claws. Also the bottom leaves are showing a lil bit of burn on them. I was going to start feeding it the bloom nutes tommorow but now im thinking i should hold back till i know whats up. What do you guys think i should do ? maybe a flush ? I was told to use the 20-20-20 for about the first 2 weeks of flower but obviously the plant didnt need that much nitrogen. i was only feeding about 1/8 tsp of it every week or so.

Honestly, your plants look great to me. It looks like any spots are localized in the lower leaves, which are the oldest leaves on your plant, so the will eventually show signs of deficiency on even the healthiest plants. As for the curling, I don't see it. All I see is gravity. I like to think of plants like kids: if you go around hovering over your kids worrying about every bump or scrape, it's going to stress you out and it's going to stress them out. You want happy, healthy, well rounded kids and you want happy, healthy, well rounded plants.

If you're worried about it, just give them some clean water for a bit.