Yellowing early in flower

I should know this but my lower/inner leaves are Yellowing pretty quickly. What's the main cause of this. I know nitrogen deficiency. But the plant is dark green in general. I'll post pictures later but any quick ideas

could be over or under watering

Would underwatering cause yellowing. I think I have been underwatering. I doubt it's lack of food because I mixed dry amendments in it at transplant and top fed a week ago with earth juice rainbow mix bloom. But I know I have been lagging on watering. Will that do it?

pics always help but if their dry they will use up the water in the biggest lowest leafs first then the rest of the fan leafs follow

I can post pics later I'll post pics I took about 2 days ago but don't see yellowing. Its been 5 days since I watered and it was dried out and a little droopy. I'm guessing that's the issue but here is a pic a couple days ago before rapid yellowing

Play around with your feedings man! Personally, I up how much I feed as the plants get bigger. I end up flooding my table twice a day, every day.

Also, perfect your PH! Couldn't hurt buying some drip clean and running it with your feedings just to make sure no salt build up

I Only use organic fert In organic soil. Ph and salt buildup shouldn't be an issue. I water with tap water every other watering and compost tea every other watering. Too feed about once or twice a month with organic fert

Thanks guys. My conclusion is underwatering. As you see in in smart pots and 5 days was way too long. I just didn't know that had to do with the rapid yellowing the past day and a half. I have 3 gallons of waterway today hopefully the yellow leaves comeback but I doubt it. Shouldn't be an issue though. Thanks guys

the yellow leafs will fall off once the plant sucks them dry

Here is the pic of the yellowing that happened when I forgot to water and waited a tad bit too long. As you see in the pic I have watered and the leaves are back up but will the yellowingstop

And another topic. I see the first pistils coming in and they are frosty but still only smelling like plant, no chronic. While I have other plants that are a little farther along just reeking. When is the average time your bids start smelling