Gedarel 20/150 pill and headaches

I was put on this pill by my GP to try and help with the PMDD I was experiencing on the second half of my cycle. I had previously been on Eloine for this which really helped but I can't have this any more due to adrenal insufficiency. Since starting Gedarel I feel like my mood is worse, I just feel flat all the time. I can't sleep, tired but wired. This definitely is not the right answer.

After my bad experience with a different pill, the doctors put me onto a lower dose in August and felt fine, now it’s September (my 2nd month) and it didn’t come until a couple of days, but I feel fatigued during the day and exhausted.

I have tried a few contraceptives including the implant, mini pill and a different combined pill before landing on this one and it was by far the best. Lighter periods, can predict them starting to the hour. No cramps or pains or nausea which i did have before contraception. I do have hormonal headache leading up to and during the break week. Moods were awful on the progesterone only pills but on gedarel I am very level to the point of sometimes feeling a bit numb.