I tend to agree with 'Bijingo' (BTW hope you know what that means in some communities). You should remember that the bone is embedded within muscle. Think of a lamb chop, so your boney fragments are surrounded by muscle and so they aren't going anywhere other than slowly being reabsorbed into the body. You surgeon is suggesting that there is still non-union of the fracture sites hence the bone stimulator. Unfortunately normal bone needs weight bearing to get beyond a callous formation. So it's a little catch 22 in the beginning until we see more callous formation. Hopefully the bone stimulator will assist. Don't worry about the pain as such to much as you'd have that in any event at this stage.

Think about what you can get on with while non weight bearing on the rest of the body and especially the joints above and below the fracture sites. This is where a good physio should be able to provide sound advice.