Protein shake problems

I haven't posted in a verrry long time but I read your posts and like them alot.  My problem is:  I am almost 4 yrs out from my RNY and I am getting sick from my protein shakes. I haven't changed brands or anything like that. They just feel like a rock in my pouch. I've gotten sick so any times that I can hardly THINK about consuming one. Has anyone else developed this problem and if you did, what did ya do about it?

At 4 years out you don't have to drink protein shakes unless you want to. You can get enough protein from eating just regular foods. Now I totally understand if you are doing the shakes to detox your body.

Since the shakes feel "like a rock in your pouch" how about just adding more ice or water to thin it out. The only shakes I can tolerate are the Atkins low carb shakes...and I drink it on ice or mix with coffee.

 my hubby is 5 yrs out, I use Soy milk for his, he can't use regular milk.  For mine I use no sugar added almond milk otherwise the protein shake feels like a led weight in my pouch.  I'm only a little over a year out.