Protein shakes and GAS

So ever since I started my shake diet. I have gas all the time. Sometimes I even feel crampy from it. I am constantly burping and ya know...Anyone else experiencing this? I stopped blending them with the ice because I thought that was the problem so now I'm just blending the water and the mix in the blender then adding ice cubes. Still the same problem though. Any thoughts?

I have been on the all shake diet since Sunday.  I have to say I don't have any problems with gas.  I'm using the GNC brand 100% Whey, its more or less the cheapest one that GNC sells that will work for my doctors guidelines.  Maybe you should try to switch to another shake?  I don't mix mine in the blender, I use a hand shaker.  I acutally have two and I rotate them.  So I fill them both up at night and then leave them in the fridge.  That way they are both cold the next day and don't need ice. After I finish one I mix up a second batch and stick it back in the fridge.  Its always cold by the time I need it again.  

Good luck!