my father has Hodgkin Lymphoma and has been on chemo for about 4 months (every 2 weeks of ABVD); he fainted 2 weeks ago and was hospitalized and received blood transfusions. He is now very weak and continues to lose weight. The doctor switched him to vinblastine and prednasone. The family doctor thinks he won't pull out of this but the oncologist is optimistic. Does this sound like a downward spiral or is this not…