dear bizi something similar happened to me wheni injured my sesamoids in left foot... weight shifting and general antalgic movement meant that my right side bore a strain - in joints, posture/movements and weight that it was not used to. i think your right knee is saying hey i can't do the work of two like my feet did. your job with different postures using your knees will bring this out.

glad you are takin care of the knees now, pls take it easy. i wonder if a knee support would help while you were working. thing is sometimes those things can be real uncomfortable, more damage than help.

love

~ waves ~