Ultracet and close my eyes

I've been taking ultracet for a little more than a year, for chronic cramps that make me very ill and immobile. I was wondering if any of you itch constantly? I feel so self conscious about it, but I can't help it! Other than that I have this strange feeling of calmness and its as if I'm in a quiet bubble...though any light and sound is extremely intensified for me. Anyone else like this? And I have to ask people to talk very softly to me. I become very sleepy but the moment I close my eyes I have very strange images and thoughts, making sleep difficult. I really hate taking this medication, but its been the only one that helps in terms of pain.

I took one ultracet 5 hours ago for sciatica; I am now experiencing a severe headache along with disturbing thoughts when I lay down and close my eyes.