So weak for for this bag seed I got to experience a couple of problems. Little bit of nutrients burned at the tips of the bottom leaves and also some yellowing. I started using the second set of nutrients and moved to a 3 gallon fabric pot. She still looks very healthy And by the way I do think it’s a girl!!!
It is quite normal when the lower leaves are shaded by the top ones, since they can no longer get light, they die.
She will bounce back, it’s nearly a certainty. Fabric pots with good soil:perlite mix look right. You overwatered early and lost early leaves. She looks great. Wet/dry cycles are key to robust growth. Neither soaked nor dying of thirst.
And don’t anyone denigrate bag seed. All great weed comes from seed somewhere. Lab grown, expensive genetics aren’t always as claimed. Yours looks to be today’s typical 50/50 mix. Enjoy the process, and your harvest!