Older yellowing leaves-Whats wrong?

Older yellowing leaves for bout 1 month,

Was adding miracle grow stopped because of salt build up.

I flush every week now.

Any UK people know a good organic fertilizer? cause I don't use the other ones

it happens dude all the avalable nutes. were used up to make new leaves. i would trans plant asap. if you want some decent buds unless its there for looks and smell what lights are u using? it looks like a windowsill project.because of the strech? my observation.

im not frm uk but theres blood/bone meal, bat guano, worm castings,fish emulsion, im sure theres a couple more cant think of right now.

I think she's root bound. I would up pot her,maybe even a root prune. If she is in a fan wind path, I would point the fan at the wall or something. I in fact have removed all blowing wind in my gardens, about 5 years ago now.

moved her into a huge pot now hope she does better from it.

Good, because she was WAY too deep in that last one in the pics.
Remember a gallon of soil (or ~4 litres for you funny metric people~ weirdos) per foot of plant height. And the soil surface should not be more than an inche below the rim of the pot.