I've had two successful iol implants and my experience with both was that there is a settling-in period, as you put it: For several months, I'd experience a kind of 'wobbly' sensation or awareness of part of the lens if I looked in certain directions. This was especially noticeable under fluorescent light, for some reason.
For me, this gradually went away altogether. If your problem continues to bother you, go back to your docs and specifically--that is, using specific language--tell them what you're experiencing and ask for an explanation. My own surgeon said the lens capsule shrinks up more snugly to the implant as healing progresses.
I saw them recently and he saw nothing wrong. I had also been to see a retina speciaist earlier who made no comment after examining my eyes.
This can not be determined without an eye exam. Ask your surgeon or get a second opinion.
Dr. O.