Well, the worst feeling sick was probably when I had the flu and then caught pneumonia a few days after. I have asthma and couldn't breathe properly for weeks. I was also throwing up constantly. That was a long time ago. My asthma attacks always make me feel really sick. Last night I had one, fell over, hit my head on Bourbon and Maddogs movie cabinet, probably knocked myself out, had a panic attack... and then another asthma attack. My legs went completely numb and I was shaking. Yay for lack of oxygen! Thank Jebus for Bourbons EMT skills.
The worst sick, though is something that started a few months ago. I started getting dizzy spells and passed out at work a few times. I didn't make me feel too bad (nausea or pain) but it did feel... weird. It felt like I was being pulled to the ground from my left ear. This went on for a while. I had to stop driving. The doctors said it was some kind of inner ear disease. I don't know. I still get dizzy but not as much, so I'm happy.
Man, you guys have had some crazy sickness.