my mom just finished her cem/ radiation regimine for anal cancer.  The 1st round of chemo went ok, this last one was horrendous.  She was admitted to hospital 5 days ago for extremely low sodium,and blood counts.  She had had severe diahrea for days  prior to her oncologist admitting her.  Levels are slowly coming up.  However, bloating,diarrea , & vomiting today, whats up??
Anti-cancer medications have lots of gastric side effects. Vomiting can be taken care of dexamethasone and ondansetron. Ask your doctor if she has been prescribed these. Her low blood counts are a worry, inquire if she has been prescribed count elevating meds like filgrastim. It is extremely important to keep in touch with your oncologist while on chemo. Hope that help. Wishing for her early recovery.