Yeah I feel you. Colds always make me feel like just lying in bed under the covers and doing nothing at all haha.
Actually, the thing is, yellow and white don't go well together. The white text is barely visible against the already light yellow background. It strains the eyes. I recommend going for a dark background with the white text, or if you want the yellow background, change the text to a darker colour. Make sure the two colours compliment each other! Hope this helps. c: