Pure Yellow Leaves w/ No Brownage

Hey everyone. Real quick question.

I am in week 4 in flowering. My babies are super green with no droops. But is it normal to have maybe 1-3 leaves that are COMPLETELY yellow? There are no signs of brownage, no crinkled leaves. It's just pure yellow and the stem part is purple (which I assume are dead because they fall out or easily to pluck w/o harm).

I'll get some pics up in a bit. Just wanted to see if it was normal to have a completely healthy looking bunch, but maybe 1 to 3 leaves that are just pitch yellow.

They have no signs of over/under watering. It doesn't seem like nut burn. Judging from the nut burn pics, these don't look like em.
 
Top