It seems farms are pretty much automatically made by any population units that are not doing other things, thus manually making farms most likely wont help anyway because, surprise surprise, there is not going to be anyone to work them.
Oh wait, I just read your turn.
You realize that fortresses are only to be flooded with the commoners during sieges right? The point of a siege is to starve and plague out the hiding enemy.
You just started to siege yourself. I don't even know what to say to that.
On another note to the GM, it seems that I am running a despotic monarchy, although that is what I want on the end of course I don't see how I can administer such large tracks of land, would it be preferable to appoint some lords and get my feudalism on? Hopefully that would increase the percentage of my population I can have as a standing army and increase the defensiveness of my lands. Of course doing so would also raise a host of issues of loyalty and most likely decrease my income. At least that what would happen on earth.
Basically I am asking what will happen in game turns if I change to a feudal monarchy?
Adwarf, the short answer to all your issues is that you just tried to cram five million people into at most a few square miles.
You are lucky Ghazkull did not have most of your people slaughtered.
Edit: To put that in prospective, put out your arms as far as they can go, in the least dense area of where you shoved your people you would have just smacked two of them.
Edit 2: Another way of putting it in prospective is that, since you are working with almost dark age tech, each present is going to need 2-3 thousand times more space.