Help with analysing move

BxN seems decent to me.  That allows d5 to defend the knight, releases your bishop, gives the knight a go-to square, and generally looks good. Could be trouble with R?d1 though... try to prevent or defend with RxR or Rb8 and push the c pawn up?

If you prefer I think you can play Bc6 instead, keeping your bishop pair & defending the knight and the rook that way.

hey dude are you in the middle of a game? It would be cheating to help you!

I would argue 17) ...Qb8 in the Bf5?? lines.

But the issue is white plays to capture your d pawn with his threats on the queen etc, and ends up 2 connected passed pawns ahead with any luck.  You will lose that endgame, likely.