Desogestrel pill and lower back pain

I really wanted to like Desogestrel. Initially, my skin was the worst - so oily and immediately broke out in painful acne. This quickly subsided after about 2 weeks. For 3 months, my breasts were so enlarged and sore all the time. I noticed around the 3 month mark that I was experiencing vaginal dryness too. My periods have been totally irregular - since starting Desogestrel in May I've had 10 periods. Many of these were trigged by intercourse. The volume of blood and the level of pain was variable for every period, making it hard to predict. The final straw for me was I started losing my hair around the 5-6 month mark. My hair is noticeably thinner on top and the ends are ruined / look awful. The only positive for me has been that it made me more energetic and have a better / more even mood. It did has not affected my sex drive and I gained a negligible amount of weight.

I have been taking Desogestral for just over 6 months. It took 3-4 months of irregular bleeding/spotting before my periods seem to have stopped completely. I do notice that I have had several occurrences of thrush along with weight gain/increased hunger, tender breasts and occasional period like cramping without bleeding. Mood overall has been slightly lower and feel like I am prone to pms symptoms still (teary, low mood) at the time I would have previously been due on. Had been off contraception for several years as combined pill previously contributed to anxiety/depression. Wanted something to control v heavy periods and not impact mood greatly and this seems to be working so far despite some unwanted side effects

Started this pill as I had horrendous migraines on Rigevidon. Was excited to start the mini pill and to not have bleeds in between pills but was I wrong. The first 5 months I’ve had random bleeding- which I expected (but not for over a week straight) I’ve also been heavily dizzy, nauseous and have had 0 sex drive which has affected my relationship heavily.