Yes, me too. It is the result of my body getting fat first and then getting thin in a short time. Don't worry too much ... nothing too big ... because the elastic fibers of the skin can't be recovered. There are some ointments on the market to remove this wrinkle, which are really useless. I have used them all. Let nature take its course as long as there is nothing wrong with the body. If you feel uncomfortable, you can try to eat more.