Hi!
Sorry I don't have any answers for you, wow, 8 revisions! I can't imagine!
My daughter Caitlin has a VP shunt and had a grade 4 IVH (29wk preemie-now age 5). To me the vomiting seems strange-Caitlin always had bad bad vomiting when she had issues with her shunt. It is so scary when things go wrong with their shunts! I hope your doctors find the problem for you soon!!
Lisa O.