Badly Bloated

So young and having a complaint that makes you feel this way is quite tramatic.Are you able to speak with your parent's? Water retention causes your tummy to bloat, are you peeing alot as you mentioned that you are drinking alot of water which is a good thing, however if you have upped your intake your bladder may need time to adjust.However a simple urine test can be done to exclude urinary tract infection.

You have said that you drink lots of water, is there a reason for this, although having said that one and a half litres isn't that much in a day, you try drinking a litre in 20 minutes like I had to do recently! Do you drink from a bottle or a glass as I wonder if you are swallowing air when you drink and it's building up in your stomach.  Do you drink a lot in one go or do you sip small amounts If you're drinking, say, a full glass at a time, why not try making one glass last half an hour or so and avoid gulping it down in one go, if that's what you do. When you eat or drink are you chattering away while you're doing it as you could be swallowing air without realising.  Do you think the bloating came on when you started drinking the water?  Why not try cutting down on the water for a week or so and see if that makes any difference.  If you try cutting out the milk you should do it at a different time to cutting down on the water, just so you know which one works, if any.  I hope these suggestions are helpful.

Absorption is quite difficult and complex and we don't always understand all about it.

That said; if you are drinking water and remaing bloated; the kidneys may be teling your body to 'retain' fluid; esp if you are taking in salt which is hidden in all sorts of food under different names. 

You can also take in water from veg and fruit, and if your body isn't expelling it so readily; and with some salt you could be 'retaining it' unawares... the same if you are drinking caffinated drinks like tea and coffee. Our 'mug' sizes are not the small mug sizes of the arabs for instance and the amount of caffeine we consume as a society is huge. Caffeine can cause the bladder to retain fluid. We feel we have emptied our bladder, however it can remain quite full, and we are unawares.

So i would recommend a liquid 'fast' (drink a little water where necessary) for a day or two.. reduce salt intake. You can get 'water' from things like grapes which will assist your kidneys to rid toxins during this time... which will also help your skin etc.. so eat foods which contain water (like carrots and grapes and tomatos & beetroot which are anti oxidants) and avoid caffine. Don't eat salty foods  if you can help it (like crisps and cheddars).. EAt yoghurt, radishes without salt!..  (and remember this can be hidden in various foods under different names without you realising this). if you do this for one to two days; and see how your body copes...bit like a 'detox'.. it will allow your bladder to empty and reduce the bodies need to store water to some degree..... 

summed up; reduce salt, sugar and caffeine and eat anti oxidant foods.

i hope this helps; please post back whether this has releaved you of painful symptoms..