Alright, this would be my 3rd time growing but this is the first time I've really had any issues with a plant so kinda unsure of what my issue could be. With that being said I've noticed in the past week lower leaves more towards the inside of the plant have been turning yellow, little curling under, and a little browning in some areas. My pH is usually between 6.2 and 6.5, I was thinking maybe a mag issue so I added 2 tsp of epsom into a gallon of water and didn't seem to help. Now I've been told it could be nitrogen deficiency or toxicity, nutrient burn, or even bugs, which has kinda left me blank and stressed out wondering what the hell it actually is. I'll leave some pictures and hopefully someone can put my mind at ease a little haha, and is it at all possible that what's happening is just normal leaf die off and I'm just tripping over it? Just seems a lot more than I'm used to seeing at this stage.