I haven’t tried on my suit jackets in about four months. They had gone from a close fit to comfortable in two months, but I put them side because the trousers were getting too baggy again.
This morning I tried on one of the jackets, just to see. There’s easily five inches of extra fabric here now. Things happen slowly, day to day, so I don’t see it most of the time. This is more than a little surprising to me.