Not enough info. Height? Bodyfat %? before/after photos??
You can definitely be 14 stone or 15 or even 16+. Question is: do you want to? Most of the time the excessive GFH over-eating allows you to get stronger not because it's piling on muscle but because it improves your recovery ability since a large caloric surplus helps your body recover better. If you're eating plenty of food but not stacking on muscle - what do you think you're gaining?
What's funny is when people GFH - not to squat 500 for worksets but somewhere in the mid 250s to 400s and think they're somehow bad ass since they're slightly above average in strength but way overweight for their lifts. That probably is going to be you if you get to 14 stone though.