Sounds like what I went through after my 2nd round of chemo. Vomiting was every hour on the hour for 4 days straight. So once I figured the timing of when I got sick I would PEG about a

Dig.7/03 3cm+ lymph nodes & base of tongue tumor. Radical neck dissection w/removal of one neck muscle, laser removal of tumor. 47 sessions of radiation, 2 doses of Cisplatin & PEG tube 40yrs old non-smoker/drinker