<human>: Summarize the given text in a few sentences.

first post to running, so if this is the not the appropriate place, my apologies.  Like the title says, question about my knees and running.  Having recently moved and been deprived of my bike (my usual form of exercise) I decided I would pick up running.  Had no issues to begin with and was up to a little under 5k in about 20 mins.  I would go for about 3-4 times a week.  Having talked to a friend back home, I was chided for not having proper shoes (i was running in airwalks) so decided to go and buy some.  As far as im aware, theyre your run of the mill running shoes, the fit is fine and walking in them felt fine.  Anyways, on my first run i make it like halfway though my usual route and my right knee on the outside bottom portion begins to hurt. I try to ignore it and run through it, but it gets to a point where it hurts to walk and is almost impossible to run.  I walk home, rest for a few days and it feels better. About a week after the incident, im in a city walking around and from just walking, both my knees start having the same kind of pain.  Ive tried running once since in my old shoes and same thing with the pain. Any ideas on why so sudden ?? No pain before the new shoes -- intense pain with them and a pain that hasnt gone away despite not running ...
<bot>: Bought new running shoes, intense pain in knees because of. Continues to rear its ugly head whenever i walk/run now