Hey out there...
you said "no food - that will stay put"... do you mean with your stomach? I have had that issue to - when i switch, i lose all the food i ate.... it has helped me a lot to cut out all dairy, wheat, and sugar. can you cut those things out and try eating a lot of veggies and non-wheat items? I have found it to help a ton.
That way, when you do switch, there is not so much with a sensitive body to malfunction.
and it costs less =)
be well
can you go to good will and get some boots?
kiya