Nexplanon implant and more regular periods

Positives of the Nexplexon implant is it is a very effective contraceptive and the insertion was quick and painless. However, I have been constantly bleeding (spotting and heavier bleeding) since I had it inserted 6 months ago. I have had bad cramping and lower back pain along side the bleeding. My overall mood has been effected as I feel exhausted most of the time, although I do work some night shifts so this may be a contributing factor. My sex drive has been lower than normal. I have noticed my boobs ache and feel sore. I am considering having it removed, if the bleeding does not settle.

Persistent thrush immediately after getting it fitted, also VERY low mood when period is due and generally more emotional.

It was my first time on contraception, I was afraid to forget the pill and had the feeling that the implant had less hormones in it. My mood was very fluctuating for the first 4-6 months but then settled. My period was much lighter at the beginning and not painful for the first few months, then actually got irregular after 7-8 months (only a few days, then nothing for 2 weeks, then 3 weeks long period...) The insertion of the implant was very easy and not too painful, been able to feel it since the beginning.