Ive had this a whie and its beginning to get me down at work. We have quite hard chairs (I need all surfaces to be wipe-clean because of the nature of my job) which I imagine doesnt help!. It's not too bad on my sofa or bed. Its ok while im sat forward or standing but as soon as I shift in my seat or as I go to stand/sit, I get a really bad pain in my tailbone!! Im up and down a lot and the pain is getting tiresome Does anyone else get this? ?