Hello i don't know if i have Mastoiditis or not but i would like to make sure , i have a spot behind my ear slightly larger than the other side of my ear , as far as i know i did not have an ear infection , in the last few days the swelling of my ear has gone down and it iches slightly sometimes , i got this mabey 2 - 5 days ago and i just wanna know if its Mastoiditis