What Causes Excessive Craving For Fluid Intake While On Triumeq?

begaining yesterday I have had the desire to drink a lot of liquids. today I have been drinking excessively. I have no health conditions except being diagnosed with hiv infections last year. I have no history of being diabetic my sugar levels were normal in January. no high blood pressure etc. I only take one pill a day for hiv..triumeq....today I drank 8 sodas 4 glasses of water and one beer..and its only 9.30 pm...can you maybe suggest what might be the problem.