just weighed myself

So i know that you shouldnt weigh yourself on a carpet because it wont give you an accurate reading and that you shouldnt weigh yourself too often (recommended once per week) but i just felt like i had to weigh myself. So i was shocked to see myself gain half a stone in a day!! Fortunatley i was weighing in my room with carpet flooring so i went downstairs to a hard surface and weighed myself again. yup, im still at the same weight of 15st 1 lb THANK GOODNESS.