My Move vs Stockfish' Move

Hello, hope the embedding works. First post

I have a question about move #11. I'm up +0.9. So after Black plays Kfd7, Stockfish wants me to play Bxe7, which brings me down to +0.7. However, when i play my move, H4, Stockfish says i'm up +1.8. Can someone explain what i'm missing here?

<iframe src="lichess.org/embed/TGE5BiGV#20?theme=auto&bg=auto"
width=600 height=397 frameborder=0></iframe>

I ran the analysis on the game for you. Stockfish says h4.

Did you not give it long enough?