Left ankle: hugely swollen, yet only somwhat painful.
Right knee: slightly swollen and puffy, yet incredibly tender, unstable, and difficult to use.
Is the difference due to the AGE of the injury? The left ankle was horribly twisted 50 years ago and has continued to hurt periodically over the past 5 decades.
Right knee eroded due to arthritis, only painful for the past decade, tho increasingly.
FWIW, I get the usual advice from every MD: RICE. Take painkillers.