Hello Sandra,
I'm also recently back from Burma and it's gone to the top of my favourite holidays...
All but one place I used, had a mixture of toilets, so just a case of waiting for a western one. We stopped off in a tiny hamlet on our way down to the 'Sunken Stupas' on Inle Lake just for a toilet stop and there was only the local style available.
Having been to India and enjoying it, you'll manage well in Burma. More than happy to answer any other questions you may have.
I'm sure you'll have a wonderful holiday.
Debbie