I've been fighting this for the first time since six months ago. Uric acid results came back low, so they classify it as pseudo gout. It is caused by arthritic joints shedding a substance that builds up instead of uric acid. It pools (builds up) in the joints just like uric.

My solution is to keep the arthritis in check as possible to reduce the damage that is similar to uric acid buildup.
Yes, it is painful as hell and can run your life if your not careful. Hope this helps as a alternate to classic gout if it applies to anyone out there