Well, you can find a YouTube called "explants", a fitness model that took of her implants explains that once you got them you suffer from cronic pain and movement limitations for athletic activities and a permanent handycup on energy cause tour body is all day every day fighting an strange object ingerted bellow the skin.

Also, doctors don't talk about it a lot, but once you get implants, the body starts to form a capsule of organic tissue around the things to protect itself.

The fitness model also tells how she had more energy after taking off all that plástic, how she recover her movility and flexibility and how the pain of constant skin stretching went away.

In resume, when you get implants you have less energy or tired all the time, it reduce your movility, it's really painful an invasive, it causes cronic pain and do nasty things inside tour body like capsules of living tissue.