Question

I’ve never exercised in my life I’ve been a pretty slim person all my life but after my 3rd baby I gained some weight nothing too crazy but I did gain weight. I started working out and eventually started running everyday . I ran about 1.5 miles . I would take breaks while running to walk but it was very tough on my knees I thought it was normal bc I’m not used to running . I’ve never ran in my life before at all . Anyways after a week I realized the soreness was not going away and it got to the point where I can’t walk w out feeling pain . I can’t press on my knees at all and they look very swollen. I’m not sure if I should be concerned or to just wait it off