Why am i so thirsty?

i am 6 in a half months pregnant with twins and for the last 3 months i have drank nothing but aquafina water i added it up and i drink 1 in a half gallons plus 13 ounces roughly a day i just cant stop drinking it i try not to soo much but then i just sit there thirsty no i dont smoke the only medication i take is heparin for a blood clotting disorder but i have taken it before and didnt have these side effects please help me oh yeah and no i dont sweat alot or really exercise lol thank you

I am NOT a doctor, so don't get too worked up either way, but you might check with your doctor to see if you have gestational diabetes. Persistent thirst is a symptom of diabetes.

You probably don't, of course, but even if you did, it's not nearly so bad for you or the baby as it sounds. See a doctor.

Maybe you have gestational diabetes or something---have you told your doctor about this? you SHOULD... there are blood tests you can take. A gallon and a half is WAY too much to be drinking per day even carrying TWINS. Insationable thirst CAN be a sign of diabetes but don't worry about it until you talk to the doctor... but DO call him as soon as you can to get in to see him.

This is to LINDSEY below me----changing WHAT you drink won't help ----it's the AMOUNT of fluids she is drinking whether it be water, juice or soda---ANY fluids that are taken in in the quantity the questioner is taking them in CAN be dangerous--NO MATTER WHAT THE DRINK IS.