In the last three years, how much bodyweight have you gained?
Profile says you're 6'2", 190, and 8% bodyfat. If that percentage is anything close to accurate, when you're that lean at your height, it's hard to look "full" unless you're also carrying more weight. However, those numbers should have you looking pretty solid anyhow. Can you toss up a pic?
Like Steez and Parker said, we need to know how you're currently training so we know what changes to recommend.
What does your current whole week look like? The days, exercises, sets, and reps.