Hi Scorpio
It is great news that they managed to stop your labour, better that than a CS.
I can understand your frustration at your constant pain and discomfort. Unfortunately there is no way of knowing if this will stop soon or continue for days. But usually what will happen is that the pain will ease and the contractions will reduce soon or you will go into labour. I know this is probably not a lot of help for you however keep in mind that there contractions are doing some good by preparing your body for labour. I would be very surprised if you went to full term with this baby.
As others have said, try to get as much rest as you can. Even if you are not sleeping just laying around on the lounge will give you some rest and help to conserve your energy. Don’t worry about eating full meals but it is important to try to eat something. Perhaps try small snacks, you also need to ensure that you are drinking plenty of fluid.