I've been keeping myself pretty fit for the last 3/4 years but I have had a couple of months off, on going back to crossfit (which I used to do 2 or 3 times a week) I keep getting migraines with aura as soon as I get back! How has this all of a sudden started happening? Does any one else get this and found anything that helps?? I really don't want to give it up becaue I enjoy it! Only thing I can think of is I had the mirena coil fitted in June?