Desomono pill and migraines

I have been on the mini pill now for around 5 months, not for contraception (sure it’s a bonus) but as a move from taking Omeprazole and Mefenamic Acid to control horrific period pain, which stopped working. The first 2 weeks on this pill were great, no side effects, nothing… After I had such a horrorific period i almost stopped it all together. Bleeding & clotting heavily for almost 2 weeks combined with debilitating cramps. Since then I bleed DAILY, with 2-3week long periods. In my review my doctors pushed me to try another 3 months as “It’s should settle out” But I’m in agonising pain some days from when I wake up and for the last 2 months have had daily headaches with a few turning into full blown migraines, which I have been sent home from work for. I hadn’t had a migraine that bad in almost a year and my headaches, which i am prone to, have NEVER been this frequent, but again i was told to ‘monitor them’ and ‘keep track of them’ by my doctor… I’m genuinely at my wits end and i feel quite lied to as well, as one of the biggest reasons i was put onto the mini pill is my medical record with the combined pill, as well as being worried about weight gain and told oh that one happen, when it most certainly has. I genuinely wouldn’t recommend it to anyone and it makes me not want to try any others due to my horrible experience now and in the past.