Thanks for writing your query
The shocks (temporary) occured may be because of cramps.I am happy with your daily exercise schedule. My advice would be take glucosamine
for your knee osteoarthritis
, the recommended dose of glucosamine sulphate is 1500mg and chondroitin sulphate is 800-1200mg daily in divides doses. Glucosamine by nutralite is a good brand and with balanced composition. This is usually given for 3 months and then 6 months off after there is symptomatic improvement. This is not a pain killer so additional medicines are required for pain control and optimum joint activity.
Regarding exercise avoid jumping/jogging on hard concrete surface.
Avoid food which is rich in sugar, oil and eat food (whole grain, fruit and vegetable) which are rich in fiber.
I hope this information suffices.
Dr.mukesh chugh (http://bit.ly/drmchugh)