Fat experiences

Recently I got some comments suggesting I lost weight, and my pants did feel loose around my waist... but when I got on the scale I noticed I have gained 9 lbs...

Did anyone experience such a thing?

Probably lost fat and water weight but gained muscle. Have you been more active lately?

It has happened to me a few times over the years.
Never paid much attention to comments from others.
There are times when people said I lost or gained weight and I did neither.