Hi I have been taking Sandrena estrodial gel for a month now and the progesterone for days 15-26.i got my period on day 21 and had my usual migraines day 21 then from day 21-26 had s couple more migraines. Pharmacist told me to then take day 27 as day 1 so that I can start a fresh who knows when period will come this cycle! Question is I initially felt amazing in taking the hrt but for last couple of days I’ve felt flat and had low grade nagging headaches -do you think this is just the meds settling. I’m continuing with daily dog walking and trying to use my cbt strategies and eat healthily ! Any advice welcome !