Progestogen-only / Mini pill and lighter periods

My periods are much lighter now, I probably bleed for about 3 days in 3-4 months - it is irregular though unfortunately so I can't predict when it may occur. My mood is much more stable than it was before and whilst using other hormonal contraception. I have been getting much more increased sweating recently though and had not made the link that it may be connected to the pill before seeing it on the Lowdown website. I have had a really positive experience with the mini-pill, especially after having used the implant before.

I was prescribed generic Desogestrel mini pill to treat my adenomyosis. I was only on it for a couple of weeks, but I couldn't cope with the symptoms. Daily bleeding and bloating but more worryingly, horrendous nausea, dizziness and migraines. Also had swollen tender enlarged breasts.

I started taking the minipill about 6 months ago because of my really heavy and painful periods. And the first three months I still had my period, but it did get a lot lighter and less painful. The last 3 months I've had no period except for a week of spotting. My mood has become more stable, I used to become almost depressed before my period. I do however become nauseaus a lot faster especially if I'm stressed, I have lost 5 kg almost because of that. I don't think this is the best contraceptive, but I do like that it only contains one type of hormone and that I don't have my period anymore. But I'm not planning on taking it for a very long time.