S.O.S save Monster Cookies

Okay. You've gave me enough info to explain what is happening... You have yiur first it of rootbount.. your root grew and reach the side at first it nit bad but eventually the sides of the roots touching the plastic die and many drinking root are attache to these roots they usually die around the same time giving you the impression you underwater. Even if you water. They will stay like this... You need to repit in a 5 gallon and add some calcium base nutrient to help with growth and they will bouce back in no time. The root will grow back but the plant will do the same thing again in a few weeks.. . Very commun in plastic pot. Poke air hole everywhere will help kill the root when they touche the side forcing it to regrow roits before this happens. So repot and you'll see. I did many testing with plastic pot for fun. If you remove the plant from the pot you'll see the slick roots along the pot line.. these slick roots arent supose to be slick

When you water you should saturate the pot till you get about 20% runoff. This ensures all the soil is actually wet and you don't end up with dry pockets. Looks like either your ph is starting to swing you into a lockout or she needs more feed. 🤘😤

With the new growth yellowing , checking for gnats in the soil and will the leaves for mites. If in soil water less often, like till the container feels light. Gnats breed in moist soil and larva are the ones doing the damage. If its gnats. Also maybe check ph next time you water, just trying to help hope it does maybe

Are they in soil?