Knee problems after running

Question
Hi, may I thank you in advance for your time taken to read and respond.
I am 23 years old and around 4 months ago I embarked on a fitness regime which includes regular gym visits (3/4 times per week) and 3/4 runs per week, usually on alternate days. I started the running by going out for 10 minutes or so for the first few times and increased gradually until after a month or so I was running on average between 6km - 8km, sometimes up to 12km. Since teenage years my right knee has occasionally caused me pain when exerted however I felt it strengthen gradually with each run. A month ago I had a break from running for a week or two, then on my first run out I stupidly ran 10km as I have done so many times before. For the next week I was in quite a lot of pain, though not unbearable, and had some bruising and swelling on my right foot and across both legs and knee's. I rested for a further two weeks but am now experiencing pain in my left knee and left hip joint every time I run. I am now ensuring I spend 10-15 minutes stretching pre and post run, as well as wearing a support bandage on the left knee (I wear relevant running trainers). I am jogging at a much slower pace but I feel the pain in my knee after just 2-3 minutes of light jogging.
I am unsure how to go forward - I have a 10km charity run in May, and want to be as ready for this as possible. When I very first started running, towards the end of run I would feel my right knee start to hurt but this would cause me no pain afterwards. As I said the strength improved to the point where it rarely bothers me, and I was hoping by gradually getting back out on the track this would happen with my left knee (and hip) too.
Do you think I need to completely rest for a while? Or continue to do small runs to try to strengthen it?
Also, on a gym session I usually start off by doing 5 minutes on the treadmill, but am experiencing the pain after 2-3 minutes as well. The pain isn't unbearable, and I am able to carry on lightly, however it does feel uncomfortable and I have a gut feeling I may be adding to the damage.
Your expertise would be greatly appreciated.
Many thanks, Jay

Answer
Hi Jay
I am quite sure i know what the problem is and can correct your situation,but i need to know what your fitness back round and consistency program was before you embarked on your current program and also your height weight and past athletic past and with very specifics what is your vision that your focused on and want to accomplish with out looking back and wondering WHAT IF.

All the best

John