Need help 2 weeks into flowering

Using general organics go box in foxfarm soil with perlite ph 6.5-6.8 ppms around 700 not sure what it is maybe being under fed they yellow spots have been there since beginning of flowering might have been ph being a little low but not sure about other anyone know should I be feeding at higher than recommended dose with organics?

PH is fine at 6.5 in soil, give a shot of cal/mag.
Looks like that's a pretty small pot too, what size is it?
How tall is your plant?
She is probably root bound too if that's a 6 or 8 inch pot like it appears.
Also, if you just went into flower, you might want to continue with veg nutes for a couple weeks.
I stay with veg nutes until the stretch stops.
.
View attachment 2752719

12 inch pots plants are little over 2 1/2 feet tall

anyone got any ideas?