The back of my mouth is very sore - all along before you get to the throat. I have had some mouth soreness before. It is especially when I wake up. I have gargled with salt water. Is this something you get with the Pred/GCA or should I be seeing my doctor. I also have a bad taste in my mouth when I wake up. Thanks for any advice. Also I wake up about 5 or 6 times a night to pee - I think this is because of the Pred but can you take anything to prevent it Would rather not take sleeping tablets. Have become an expert at sleeping in between wake ups.