The soil looks like it has a lot.of wood chips in it, I was always told those are a no-no because they mess with your ph balance when they break down and if added dry they absorb nutrients from the soil, I was told to use something like bio-char instead and soak it before adding it.They're in Kelloggs patio plus organic soil with added perlite, I usually keep my plants around 75 degrees during the day. I think I overwatered them before and they have just stayed droopy since then. I took the humidifier out of my grow space because of the bugs/overwater. So it's usually around 35-40%
Also based on the pictures I really don't think it's n-toxicity or deficiency, I've accidentally gave my plants n toxicity before and my leaves were damn near black and looked like I put a coat of turtlewax on them. And with a n deficiency the yellowing would be a lot more uniform on the leaf in my experience. I'm no expert but maybe you're clogging the stomata with the soap spray and they can't transpire properly? It looks like some sort of micronutrients uptake issue if anything. Also what kind of soap and how much are you spraying with?