Have you tried looking online for the rice milk?? The kind I buy doesn't have to be refrigerated until after it's opened. I wonder if they have it for sale online???....
I can't really do soy milk either. Last year when I was stable I drank a gallon of soy milk a week. I drank soy milk more than water!! LOL!! I love it! But, lately I can't tolerate it very well since I got sick again. I can only drink a little bit a day. like 1/2 cup. That's it.......but, I'm trying to get my body to accept it again becuase I love the stuff.
It does give me gas and bloating, too. So, don't be discouraged. I think over time your body will adjust to it. Like you said.....HOPEFULLY!