Everyone is different
Honestly? This is great that you have lost so much weight although you didn't have eight glasses of water a day. But why do people say that you definitely have to drink that much water if you want to lose weight? You are the best example that it is not necessary-nevertheless everybody still believes in this statement.
It's true, you don't HAVE to drink 8 glasses of water a day to lose weight. In fact many people think you have to drink 8 glasses a day just to be hydrated and/or healthy. The simple fact is it works for some but not for others.
Myself, I do drink at least 8 glasses of water everyday, usually more. But I exercise in the morning, noon and evening, usually 2X per night. So I sweat ALOT!
(I live in a subtropical climate, so sweating is the norm, even for skinny minnies) Also I personally find drinking water helps me to curb appetite, especially at times when I was notorious for snacking...... (bad me, bad...)
Since I have cut soda and processed juices out of my diet completely I have not only become used to just drinking water, but actually find it much more refreshing. But that is just a personal taste.
-Some folks will tell you that you MUST drink 8 glasses of water a day to lose weight...
-Others will tell you you MUST exercise like a demon 4-5 hours a day to lose weight
-Some will say you MUST do weight training.....
-Others insist you MUST eat low or no carbs..
-Some will say you MUST take supplements, miracle cures or what not....
The bottom line is, different strokes for different folks.
Some (as mentioned by BigGuy2007) do not follow the "8 glasses a day" rule and do just fine with their weight loss. Others lose big pounds with diet alone and no or minimal exercise.
The most important thing is to find something that works for you and that you can continue to do long term.
Anyone who tells you there is only one way to achieve your goals, or that their way is the ONLY way, is wrong, plain and simple. If drinking 8 glasses of water a day doesn't work for you, thats fine, better to instead use that energy to find something that does.
Then share your secrets with us so we can see if it works for us too!
sirant