Im almost 12 wks i also have a lot of foot ankle swelling it seems to come an go i reakon that once i am more mobile it will go back to normal once its in proper use..but for now i am still only PWB so i guess i will have to wait and find out my physio said to do the norm ankle exercises but it still doesnt do alot i also get alot of pins an needles in my foot when trying to use but i also put this down to it not being use properly… Using it properly also scares me..good luck