Is vomiting a symptom of cll?

Not usually. Cll is often a disease without symptoms. Most people are diagnosed with an elevated blood count. Nausea can be seen when the disease is very advanced. If a patient with cll has vomiting they need a complete revaluation.
Not usually. Cll may be asymptomatic, or may present with weakness, anemia, lymph node enlargment, low grade fever, infection etc. Vomiting is not a usual symptom.