The amount of gravitational pull you feel is partly offset by centrifugal force, which varies depending on how close you are to the equator, and on how far you are above sea level. According to your bathroom scales, you weigh more in Edinburgh than in London.
Edinburgh here. Glad to know that it's physics, and not those pancakes I had for lunch.
Based on my diet when I was there, I'm lucky I didn't collapse into a neutron star or something.