Now that my dad’s pancreatic cancer pain is worsening he is hyperactive and wants to do a million things around the house. While I admire his determination to seek zest in life this hyperactivity is often followed by extreme fatigue and rage and mood swings. Because of his temper and rage I don’t argue but then he gets so mad when I’m not “overworking” like he is and he accuses me of ignoring him when I say nothing.
I recall when my sil was dying of pancreatic cancer, she had a sudden burst of energy, sat up in her hospital bed, negotiated several deals on behalf of some clients (over the course of a couple of days) and then crashed. And died.
I would call dad's oncologist to discuss.