So glad things are moving. Keep up the treatment as the painkillers post surgery and the anaesthetic will heighten your risk again. I weirdly found nuts were beneficial also as they were hard fibre. (Dried fruit and nuts perfect combo) For hospital you could take nulax....which is dried fruit block you can pull off and chew.
I took movichol pre chemo and kept it up in the first few days. The secret was starting prior for me. I know you tried it all without success.
Here is to smooth sailing for you now. X