25 degree scoliosis i'm 18 and stopped growing so curve won't progress. having a bruised feeling under lower ribs am i growing or is it getting worse?

Not correct: Curve can still progress even though you may be done growing. Stay fit and strong, swimming is a great exercise, get an xray at least once per year to follow. You will need to be examined to find out about the pain, can be many things.

They are most likely: Unrelated &a curve at that degree at skeletal maturity or end of bone growth is highly unlikely to progress or cause any pain issues unless located in the lumbar spine where it may alter the mechanics of the spine leading to accelerated degeneration and progression due to that & if develop osteoporosis later in life. Get the pain checked out as it is unrelated to a scoliosis of that mild degree.