Hello!
You're not stressed
You have a slight nitrogen deficiency
My advice: you have two options.
One. Since you're in flowering, hit it with a liquid GROW fertilizer at half the manufacturer's recommended dosage
Two. Take a handful of worm humus, sprinkle it on top of the pot, and mix it with the top 2 or 3 cm of the substrate. And do a VERY SLOW watering with 500 ml of pH-adjusted water
You'll see a very good response in a few days with both options!
Good luck and we're here to help you!