Leaves are weighed down, lower ones turnung yellow and dying.

What could be the problem? Soil feels pretty moisturized, and I fed the lady about 4-5 days ago. About 3 days ago I noticed the problem with the leaves, they all were kinda curled down a bit, now they feel very weak and soft, especially the lowest and the biggest ones.
Also 3 or 4 leaves turned dry, yellow and brown at places. I really don't want to make it worse so I'd rather keep any nutes away until I'm totally sure what the problem is.
Will also submit some pics.

The droopy part tells you that it's thirsty.

deff needs water. unless you overwatered it which is pretty possible. but when plants flower they dont need much water at all, and the leaves turning yellow during flower is kinda normal concidering the plant needs to use more nitrogen.