Some people just don’t get used to it. I didn’t. Even though I’m such a night shift personality I eventually had to change to days because of my health. Besides the politics that exists during the days when management is there I really really ended up liking days because I got to spend more time with my patients and I learned more in the three months I worked days than I did in the whole year and a half I worked nights. Ask your boss if you can try it for a week to see if you like it. Then decide, but you have to do what you have to do for your health. I had the same situation you did and switching to days was the best decision I could have made! I hope things work out for you!