Fatigue, Headaches...

I was diagnosed 2 years ago with Lupus, and since then over time i've learnt to deal with most of my symptoms except for the headaches!!!! .. sometimes they last a few hours.. others 3-4 days. I get distorted vision, as if im in a fish bowl. My doctor gave me some maxalt which worked for a few weeks, then stopped even helping in the slightest. I later got put onto Half Inderal LA 80mgs, which worked for abit longer.. but now neither are working and im still suffering from really bad headaches, which i think is causing me to sleep more, and feel drained all the time. i slept for 15hours last nite! and i feel like im in a no win situation because i know sleeping too much can cause headaches too! can anyone help?