Is there such thing as too much water?

In theory too much water can be bad, but the chances of you doing it are very slim. I heard of some guys who tried chugging gallons and gallons of water in a short period of time as part of a contest, and it killed them. The problem there is that your body's salt percentages ends up becoming too small compared to the water amount. It's the exact opposite of getting dehydrated.

However, if you're just drinking water periodically throughout your day, you don't really have a risk of anything since your body has the chance to use it.

Yes, you can die from overhydration. The excess fluid strains the heart and it overworks the kidneys to get rid of the fluid. However, you would have to be chugging gallons at a time.

If you are drinking it throughout the day, maybe 1 liter per hour or so, you're fine, you're just going to the bathroom an awful lot.

In theory too much water can be bad, but the chances of you doing it are very slim. I heard of some guys who tried chugging gallons and gallons of water in a short period of time as part of a contest, and it killed them. The problem there is that your body's salt percentages ends up becoming too small compared to the water amount. It's the exact opposite of getting dehydrated.

However, if you're just drinking water periodically throughout your day, you don't really have a risk of anything since your body has the chance to use it.

in my anatomy classes we learned that too much water desalinates your brain and muscles, making your muscles unable to perform the way they are supposed to (i.e., your heart can't pump properly) and you can make yourself very sick by doing so. the ideal amount of water to drink is your body weight, cut in half. so if you are 130 pounds, you should drink around 65oz a day. if you are really worried about drinking to much, keep a lowfat, salty snack like pretzels on hand.

too much of anything can be bad however, I know for a fact that I can drink 20 glasses within 16 hours and was fine (very high sodium day, wasn't much trouble).

I think you need to listen to your body. Your body will tell you when you drink too much water. Atleast I can tell when I should stop

It takes a lot of water, and is commonly known as water poisoning, or water intoxication. Your cells use osmosis to absorb water/nutrients and maintain homeostasis. When you drink too much water the cells end up swelling and will result in inter cranial pressure. If this persists the blood flow to your brain could be cut off which will result in cerebral edema (this is fatal).

Like I said though, this takes A LOT of water in a short amount of time.

Yes too much water is harmful.
If you are trying to curb boredom then why don't you read? Or knit? Or if you're artistic, draw, sketch & paint. Maybe sewing if you're good like that. You need to find something else to become your go to stress release. I knit, read, check out the posts here, keep up with friends on FB around the world and cook food from scratch. I would sketch but it's been a while and my head's not in the right place for that yet.
I remember telling a friend's mom how bored I was and I never forgot her reply, "Only boring people are bored." I was offended at the time but in hindsight I can see the wisdom. Boredom is just another state of mind. We have the choice over how we feel. So we can change it, if we choose to. I grab a book first, or hurry up and get on with starting my work out. Or I read inspirational stories of success here on MFP. either way it's a win win situation.
I wish you well on your journey.

If you sip water throughout the day, you will maintain the good hydration that helps your body be healthy and function optimally. If you follow this, you should be fine. I'd say 8-10 oz in one fell swoop to help fight a craving is fine. Try sugarless gum when you're feeling snacky, as well.

Avoid chugging water or drinking large amounts at once primarily because your body can only process so much at once and it will just go straight through you - taxing your kidneys instead of hydrating your body.

We had some frat boys at some of the left coast colleges that died from water intoxication because they drank several gallons in a very short time as part of the hazing initiation. Those frat houses are no longer on the campuses.