Combined pill and lower back pain

Worked well as a contraceptive. I didn’t get pregnant. However I noticed extreme mood swings/anxiety. I had a series of panic attacks whilst on this pill relating to things that normally wouldn’t have pushed me to a panic attack and the weight gain from this pill. The weight gain wasn’t too extreme but it was noticeable in a way that I didn’t like (very bloated, pregnant looking).

I didn't start it on day 1 of my period. So this month I got my period anyway. I went to my GP (who prescribed it to me) and we determined it's my period due to timing, consistency etc. Good to note however that since I took it to control menhorragia. 10 days into taking it, my cycle lengthened to a week (minus spotting) and it's a lot less heavy than I know it. I'm hoping to feel better next month and thinking to skip the placebo entirely but I was told it can lengthen the spotting/breakthrough bleeds. There doesn't seem to be a right or wrong. Just trial and error then adjust. Note : Don't take it mid cycle. Take it as they tell you day 1 of your period. I did this because of severe reasons at the time and was also very sick. I hoped it would prevent the usual mess. In a way I succeeded somehow, just not the way I'd have liked. But then I'm too hard on myself too.

Zero libido and very painful to have sex when I tried. Stopped periods which was great for endometriosis but slowed my digestion so much the bloating and endo belly was uncomfortable all the time, caused pain in hips, lower abdomen and lower back. Had constant reflux unless I slept upright which wasn’t ideal.