Dehydration symptoms.

After having to lay-off for almost a week due to a calf muscle injury, I have noticed that my urine is almost colourless, when normally it is usually highly coloured. During this lay-off my daily liquid intake has been about its usual, but because of the non-activity I have became properly hydrated. I have been runnning for years and this is the first lay - off that I have had due to injury, and the first time for years that my urine has been clear. Obviously I have been dehydrated all these years, and I will be curious to see any improvement when I get back on the trail again, because I intend to really keep properly hydrated now, and will use the urine colour to keep me on the mark. Anyone else noticed this ??