 [ Symptoms ] can you please tell me when is the best time to take blood presure pill am  pm [ Disease ] i think you are wise to get a second opinion whether or not the x rays look fine  the truth is you are symptomatic you deserve to learn why you are having problems the main reason i wanted to respond though is to suggest you take your temperature if you have a fever i would suggest you make an appointment with your primary care provider for some blood work a fever can be a sign of infection and infection of a prosthetic knee is always a possibility if you do have an infection you would want to get that treated as soon as possible while you are waiting for your appointment with the second doctor i would suggest you use an assistive device to help stabilize your balance so you do not fall either a 4 point cane or a walker would be ideal the last thing you want is to sustain an injury before you get your knee problem figured out wishing you all the best and hoping you feel better soon