Thanks, Andy.
RE: Pain in knees - Based upon my experience, there are two things that you can do. Apparently kelfer causes fluid to collect in the knee joint in some cases. The first thing to do is to reduce the dosage. Drop the dosage from the normal 50-75mg/kg of body weight to 10-25mg/kg. If this takes care of the problem, great. Slowly increase the dosage, as the body gets used to kelfer. In my case, we had taken one additional step - I had gone to an orthopaedic specialist who inserted a tube into the knees and drained off the fluid that had collected there. Once the original fluid was gone, and the dosage had been reduced, the pain went away. It did not come back after that even as I increased the dosage.
RE: Nausea - try reducing the dosage, as above, and see if the nausea goes away. If it does, then start increasing the dosage over a period of time. Also experiment with taking it at different times - before meals, after meals, with a gap, at the morning and before going to sleep, etc
Hope that helps. Pls feel free to ask more questions.
Poirot