Congratulations on being an aunty and on your pregnancy!
I think it's common to feel you have "lost" the symptoms, I had incredibly sore boobs at the start and awful spots but then once I hit about 14 weeks it all stopped and because I didn't start showing until around 22 weeks I felt very unpregnant. Now, at 38 weeks, I wish I felt unpregnant, now I feel like a hippo about to give birth to obese triplets.
Make the most of feeling fabulous and having lovely shiney hair and nails, indulge yourself and spend as much of your pregnancy feeling gorgeous and wonderful, it's lots and lots of fun xx