And Welcome!
Yes, there are several here who've had the Pain Pump.
I hope you get quick responses, some of them haven't been logged on here in awhile, summer vacations maybe. But if you want to look back thru some of their posts regarding their experiences, you can look up members and go back thru their posts......"LostMary" is very happy with hers and I think she is rather small (not sure), bobinjeffmo has some very insightful info with his experience.
I have heard a few folks make mention that they were to 'small', but maybe the pain pumps are smaller now than they used to be. Not sure, but if your Dr feels confident about it, that's a good sign.
Where does he want to put the implant?
I'll try to track down more info for you. Hang in there

Rae