Yellowing Lower Leaves

Alloh.

I have recently transplanted one of my youngins into a larger pot. I did not realize that i did not need to add food into their watering formula because the soil was new and plentiful. The two lowest leaves are turning yellow. I think the plant is experiencing a toxicity of some kind because of over-nuting. I could be wrong but i think this is the issue.

What should I do to bring the leaves back to a normal color?

its normal for the first set of leafs to yelow up and die thats y i jsut take them off after the 5th node
but after the first set dies and the second set starts to yellow up u gon have to flush and not feed nutes till it gets better then u got a nute problem