I have a wakin that has many bumps, some large some small, all over her body. She still is the fastest and biggest fish I have. I heard that they are the result of over breeding. As long as the bumps don't obstruct the gills the fish should be fine. Ugly but fine.
Here's a photo of Christopher Walkin (named before we knew he was a she, the fish that is). The bumps are soft, many sizes, all over, but none covering her gill plates. She has had many spawns and is most popular with the guys. Other than that she is very healthy, in appearance.