Hey Jay,
I am not sure if i will be able to answer your question as i am still experimenting.
I had low P due to which i started vitex. In 2 months of taking vitex, my P was in the normal range. I went from 0.52ng/mL to 6.2ng/mL. But note vitex was giving me acne and causing slight dizziness and bloating. And so i had to reduce the dosage and currently i am not able to take more than 2 or 3 500mg capsules in one cycle. i open the capsule and divide the powder into 3/4 dosages. Breasts definitely got fuller and bigger with vitex and firm too.
Once P was in normal range, i started PM in foll phase and vitex in luteal phase. Could not take more than 4 500mg capsules of PM. Got severe diarrhea.
Thats when i felt vitex heats the body and PM has a cooling effect. So combining both would be a good idea. This cycle somewhere on days 9, 10 and 11, i took vitex and PM together. I took 1PM and 1 vitex (both 500mg), divided the capsules into 3 parts cos i think 500mg is strong for my body and took this for 3 days. No diarrhea and no acne. But breasts had a deflated feeling. So i gave up. Maybe i should have given it more time but i was getting disappointed looking at the boobs.
On day 19, i took 1/2 vitex, wow fuller and heavier breasts
but acne on the nose and around mouth again
. Hence stopped. Still wondering what to do.
That was my experience. I feel if you do not get acne with vitex, you can take vitex for the whole month till your P levels come within the normal range and then take it in luteal only. For me it took 2 months but my P was very low. If your P is very low and E is normal, probably you should try vitex first and after P becomes normal, you can start PM at low dosage and keep experimenting with the dosage subsequently.
Hope that helps. Keep us posted with your plans and results. Good luck