Your daily P requirement now is a little over 19 blocks. Increase to 19 or 20 blocks daily to support you current activity. If you still have hunger and tiredness on 19 or 20 blocks a day, adjust C by judging the type of hunger you have (http://www.drsears.com/hormonalchart.page).
If this doesn't resolve the symptoms, then experiment with adding extra monounsaturated fat to your meals.
You might also be elevating your cortisol too much with your increased lifting schedule. This would work against your Zone efforts. Add'l fish oil would be of some help here, but would probably not resolve that situation completely, IMO. You may want to further revamp your lifting schedule taking possible excess cortisol production into account[/color:bcbef352cc].