I just now saw this post, and am sorry your pain levels are high again. The worry about you're father is a tough one as well. Stress seems to make my days worse, and I'm sure it is not helping you either. I have to agree, that maybe a nerve is being pressed on, and maybe an epidural will help relieve it some.
Please do keep us updated, on both you and you're father, and we will keep you in our prayers as well.