Bottom Fan Leaves Dying...Flowering

is it normal for my bottom fan leaves to die during flowering...everything else on her looks fine...just the bottom fan leaves closest to the soil are dying. I'm on day 18 of flowering.

Yes it is, you may even geet yellowing on the uppper leaves as harvest time approaches and the buds suck up all the nutrients

i know the lack of nitrigen changes the leaves yellow in flowering but i have never in all of my grows had my bottom leaves die. even when i lollipop them the leaves are strong. my question would be is light getting to them. to be honest though it don't matter if they die but it could be a precurser of things to come so keep and eye out for other death spots forming.

oh ok cool...I will definitely keep an eye on whats going on.....everything does look normal except for the bottom fan leaves dying