Thank U. I Just Had 80cc Of Yellow Fluid Drained

Thank u. I just had 80cc of yellow fluid drained by my ortho doc and he said it was cloudy and thin.. and I felt 100% better immediatly after he did it. Now a week later it's back with a vengeance. and I'm getting worried cuz I just had spinal fusions and abneurostimulator I'm pants in for chronic pain and the meds Im taking now have dropped by 75% and I'm feeling great, now this issue w my knee. Can u tell me anything about this ? I'm finally living life again ad my knee took a shit. Wat do u think? And wat options do I have? I made another appointment w my doc but it's almost 10 days away and I'm getting scared.
Thx
trudi