I started the patch yesterday afternoon(which was Monday, because I'm doing it for period control and less for contraception. Plus my doctor said it was find to start on the Monday) and ever since then I have had the worse headache in the world. I never take headache medicine, but last night I had to take Advil and take a nap because everything hurt. Does that go away? I'm also really achy and sore all of a sudden, will that pass too? My patch is currently on the left side of my back.