Does anyone else suffer from this? Mine's worse when I'm tired and last night was a bad one! Anyone have any tips on how to get rid so you can sleep. I sleep flat on my back in the 'coffin' position as my hubby calls it and can't sleep on either side at all as it gives me vertigo but sometimes when I've been desperate, I've tried to put my legs over to the side and it helps a bit but as soon as I lay flat again - Aarrgghhh it's back!