Schnitzel, our 2 and a half year old, only throws up once in a while and there's always a huge hairball in it, giving us a reason for the puke. However, yesterday we noticed something rather odd. She had obviously attempted to go to the bathroom but wasn't quite successful. It was (gross) stuck. I asked my sister in law who has had many cats and she said she's probably constipated and to give her a little milk. We did and she went and got it all out...no big deal. Wrong. At about midnight we woke up because she threw up. No hairball was present. So now I'm a bit worried bit trying to relax. She's active and acting normal and has an appetite. Well just now she threw up again. No solid food and no hairball. So that's the second time in 24 hours. Again, still acting completely normal. We're planning on taking her in tomorrow but I'm wondering if there are any more ideas anyone has to try to tell what it is. We don't leave anything small enough yo ingest out but I suppose you never know what they could get their hands on. I'm scared it's an obstruction of some sort. Any advice?