I m a 29 year old male, 5 6 at 180 pounds. I live a pretty active lifestyle, but still am overweight . On a recent trip to Hawaii my right foot was swelling up pretty badly. I thought this was because I was wearing sandals and my feet were just getting tired, but my left foot was feeling as tired as my right foot, nor swelling. Today, the day after I flew back home, I have been having random dizzy spells. My foot isn t really swollen anymore, but if I go for any prolonged walking my foot begins to ache and swell again. So why is my foot swelling and why am I having these dizzy spells? The right leg has osgood schlatter disease. No previous health problems like heart problems or hypertension or the likes.