Hello, newbie here 
So to jump right to the point, I fell in love with some high waist ankle grazer trousers F&F had on sale a couple of months ago. I am normally a size 10 in everything from top to bottom, but I think I must have dropped a size when I was ill last year, because all my size 10 trousers now make me look like Charlie Chaplin! So when I tried on these trousers, size 10 were way too baggy, but size 8 fit perfectly (or so I thought). I got so excited on how well they fit me in the fitting room, that I got three pairs (navy, black and one with a subtle pattern; they were £8 on sale, and i thought they will serve me well for work).
Well, upon actually wearing them outside I noticed that they do indeed fit me perfectly around the waist, but around the calves they are a bit snug. Not tight, but just snug. I am doomed with having pretty chunky calves in general . I noticed that as I walk they keep rising and curling up around the knees. I was wondering if there is any way to correct this, or are they actually just a poor fit? I was thinking if something like spanx or a footless pantyhose could help, or would that make things worse?
thank you !