rheumatoid arthritis
"I am 28 and have severe RA and fibromyalgia. I was on Darvocet which worked good. But then that was taken off the market. I've been on Vicodin for a little while now and it works wonders for me.  Which is great since I'm up chasing my 5 yr old all day.  It's the only other medicine I've tried that actually works."