I'm sorry I will never play chess when I'm ill again :D In move 26. black can't take pawn because of Nf6+
Where did I miss it?

move 28.......Rg3 + 29.Kh6 Rg5 then what does he do. if he plays Kh7 then Rg5 again and he can only bring Qf6 but tbh i think it should almost definitely lead to a win for white.

What do you mean by win ? Mate or just winnig position ? There are too many missed chances for both. Towards the end 29.Qh5 is simple win in all variations. There is nothing black can do. Check details yourself.

- 28. Rg3 Kh8 29. Qg5 (threatening Qh6#) Kg7 30. Nxh5+ Kg8 (or Kh8) 31. Qh6 with mate on g7 next move
- 28. Rg3 Kh8 29. Qg5 (threatening Qh6#) Kg7 30. Nxh5+ Kh7 31. Nf7+ Kg7 (the same position as before, only without the h-pawn) 32. Qh3! Qxf7 33. Qh6+ Kg8 34. Qh7#
- 28. Rg3 d4 (now the rook defends h5) 29. Nxh5+ Rxh5 30. Qxh5
28. Rg3 28... Qxf6
Or it can't?
edit. Hey! Where is that comment that have Rg3 idea? It just disappeared!
I just finished this 10+5 game and I feel I could won, but I can't find where... Can you help me? Or is it just a feeling and I should be glad for a draw? I admit I played terrible :o) It also shows that no game is lost until it is mated. :o)