Soleranz,
For the gout, my guess is that you are not taking enough allopurinol (Zyloprim.) If you take enough, perhaps 300 mg., you will stop having attacks or at least have far fewer of them.
But the weight loss is significant. It isn't likely related to gout or allopurinols except for the fact that fast weight loss can trigger attacks. But, such a large loss so quickly IF you have not been restricting food is cause for concern. Like odo says, have your doctor do a solid physical on you with the goal of finding out the reason for the 22 pound weight loss.
What is your sex and height?