Stem and leaves acting up!

Hi all,

Recently my girls are acting up and spots started showing up on the leaves along with the edges turning yellow:



Also A few of the girls have some sort of deformed stem, where the bottom are really skinny compare to the stem higher up:


Anyone with any idea of what are the problems please let me know... thanks in advance!

looks like collar rot. with your plants if it doesnt get any worse they will most likely outgrow the spots but it looks ph related.

thats nutrient burn. and the stem looks like sumthing that happened when it was a cutting