Right! Let me tell you BL, I have been where you are and even worse. You try sitting with a bunch of grapes hanging out of your butt. First, get the anus oil (anusol). The relief is marvellous and within a day or two you'll be back on track. The chances of bleeding being anything worse than anal fissures are minimal, especially if the blood is bright red, so don't get too anxious, although see the doc if you need to. The problem on this kind of diet is that you are taking in so little food that your bowel cannot move the waste through your body effectively. See, the intestine detects a bulk moving through it and starts a wave of muscular activity that moves the whole load on quickly in nice cylindrical log-like products. With the minimal VLCD waste, there is no detection, hence no muscular wave, leading to waste sitting in tiny little lumps throughout your intestinal tract. When the waste finally does move down, you need to strain to move it those last few centimetres and piles occur. Also the waste tends to be very dry and lumpy having sat so long in your bowel, also causing pain and discomfort upon exit. The Dulcolax will cause the muscles to start moving and you'll get rid of a load in one hit. I personally hate psyllium husk powder so I take the capsules. We aren't meant to though because of the capsule's gel covering. The husk will make your poo bulkier, which will start the intestinal process going again.
And no, I'm not Gillian McKeith!