NuvaRing and lower back pain

The first few months weren’t awful, had regular side effects like nausea, anxiety & tiredness. The main function of the ring for me was to skip my periods & for the first 3 months it worked great. On my 4th ring a few days later I started to feel incredibly nauseous (I didn’t vomit) & the day after I started bleeding, I spotted every day for over a month & still spot every other day, I also had had a large sack of my uterus wall come out which is apparently a side effect when your hormones are unstable. My hips, pelvis, back and legs were aching to the point I struggled to walk. I removed the ring & had instant relief. The nuvaring has made it so I physically can’t have sex as it feels like my vagina is on fire as soon as anything’s inserted, when I took the ring out for a few days this went away & came back the second I reinserted it (it’s also irritated my partners penis). I don’t know if I’m just very sensitive down there or my body doesn’t agree with having a foreign body inside but this just simply hasn’t worked for me. It’s also difficult to get in the right position. My boobs have gotten bigger tho atleast but so has my tummy from the awful bloating!! Swapping to the patch today & hoping it works.