A Pain in my Knee

Quick Question for all of you with knees Over the last couple of weeks (my log is not up to date) my right knee has been sore, at first it was just while climbing up a steep canyon in a race that i attributed to not climbing enough and going so very very slowly up the road. It went away after the race, about 24 hours later it was fine and I had no problems with it. then i pulled my calf (right leg) and while riding 40 or 50 miles about 3 weeks ago it was starting to really hurt towards the end of ride, i figured due to the pain in my calf I was over compensating while peddling and annoyned my knee. the last couple of rides it has hurt towards the end of the ride, and felt better 24 hours later. yesterday though it started hurting about 20 miles into my ride and was very sore by the time i made it home (42 miles), i iced it last night but today it is still really sore when i bend my knee. i have a dr appt tomorrow for unrelated matters so i will have her check it out but i wondering what the more common knee problems might be, it seems to be a moving pain, sometimes its deep inside the back side of knee and other times it feels more to the outside. any thoughts or helpful ways of relieving the pain are greatly appreciated, i want to play at the new cyclocross course on tuesday

also im over due for a proper bike fit which is probably the root of the problem??