Is this normal?
105 pound is a lot to not notice. Perhaps people are being cautious in what they're telling you? Do they know you've had surgery? As for you not noticing,... I am 13 months out, and just starting to be able to tell. It took a long time to start seeing a different me in the mirror. Do you have a tape measure you could compare measurements with for factual data, not subjective data like the mirror?
About being tired. Call your surgeon to talk to them about that. I was exhausted back in March. Turned out my protein was very low, and I needed to bring it up. I worked with the dieticians to find ways that didn't turn my stomach to help get more protein. It worked,.. I'm back up to normal as of my year check-up and have more energy. Good luck,

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