Lemon water dehydrating me?

Lately I've been squeezing half a lemon into a liter of water, sometimes twice a day, due to hearing the long list of health benefits of doing so. However, the last two days I've exhibited a large feeling of thirst, with aches near my back organs (kidneys) and weakness. I drink plenty of water, slowly, and my urine is clear. Is the lemon acting as a diuretic here? Suggestions? Tweet