I have a feeling that I have a specific OCD, but I'm not completely sure. I have a problem with obsessively drinking water. I've been drinking *at least* a gallon a day, constantly have my 32 oz. water bottle with me, and feel nervous when I don't have it with me. I don't really think I have a medical problem that would be causing me to be drinking so much. I've been drinking so much that it's been giving me headaches&nausea(symptoms of low sodium levels), and when I was in the ER (for other reasons) my sodium levels were low enough that they gave me IV fluids(but told me that it wasn't a big deal). I've also been really irritable which is another sign of hyponatremia. I know this can be dangerous because the depletion of electrolytes from the consumption can cause seizures and coma if I don't stop. I'm drinking enough that I'm urinating all the time and the urine is completely clear. I've been repetitively doing conversions to figure out exactly how much water I'm taking in, how often I'm urinating, etc. It's really troubling me but I'm worried about telling my pdoc (I also have bipolar d/o, bulimia, PTSD,DID and a personality disorder) because I don't want him to think I'm a hypochondriac. Any advice/suggestions would really be appreciated...