First time grower

So my plants were all healthy looking until a couple of days ago when I began flowering them. I purchased 12-55-8 plant food to promote flowering. The parts of my plant that will eventually produce buds is starting to turn yellow-greenish. Is this normal? Could I have too much phosphorous in my soil now? Any help would be awesome as this is my first time grow and I'll be pissed if I kill them this far into things. Thanks a bunch.

leaves will yellow during flowering. this is desired late in flowering, not a few days after the flip. go back to veg nutes for a week or two. maybe you've overwatered them.

Okay. Thanks a bunch. I'll put them to veg and see what happens.