Hi everyone, I am writing for my dad who is about 100 days post stem cell transplant. He has been doing very well and up until two weeks ago did not have any gastrointestinal issues. However, two weeks ago he was violently ill overnight with vomiting and diarrhea all night. He thought it was something he ate however it happened again this week randomly. He hasn’t changed his diet or his medications. He thought it was the food, but now that it has happened twice I’m wondering if anyone has experienced this sort of delayed reaction from the transplant?