That Nodes You Wrote sometimes doesn't work is a known bug. If it's the list of your own nodes you want to see, then you can usually work it around like this: go to Display Settings, submit it (you need not change any settings), then go reload your list of nodes. If you want to list someone else's nodes, then you can't use this workaround. You can also Super Search for a user's nodes, but that only displays 50 nodes at once. (Update: lately I suspect it's not the submitting Display Settings that fixes this, but just some random background event so I just have to wait a few minutes. Update: In fact, I'm also starting to suspect that for as long as your Nodes You Wrote doesn't load you also cannot post new replies: you get a Permission Denied error when you try to submit.)
Also, the "patients" message is a known feature and is probably supposed to be a joke like the "stumbit" button when editing your homenode.