Does Being Overweight Cause Pain In Knees And Swelling In Ankles While Walking?

About two weeks ago I started walking/jogging nightly as an introduction to exercising. I am overweight and have not been very active in the past 4 years, so of course my muscles were sore the first few days. But on the fourth day my shins started hurting mildly while jogging I assumed it was just because I still wasn t used to the increased activity so I pushed through. I was a little sore the next day but decided to go for my jog anyway that night. Both knees began hurting but not wanting to give up I finished my route and the next day they were extremely sore while moving or while resting so I took a day to rest and picked back up again the next day but instead of jogging I only walked, and the pain has only gotten worse even though I have only been walking and lowered my mileage. I have been taking over the counter pain killers and icing both knees but it hasn t helped any. The pain has been constant for the past five days or so and today my right ankle was extremely swollen and tender to the touch but it wasn t before today. Both my knees and my right ankle seem to hurt when bearing any weight, going up or down stairs, walking, standing, or while resting.