Continuous chatter after surgery?

I have a friend who have a heart valve repaired in the region of two months ago. After the surgery he was bleeding internally, and finally they stop the bleeding. He come home and a few days later he started bleeding again; the doctors said it have nothing to do beside the surgery. He went spinal column into the hospital for a few days and they gave him more drug.
Fast forward now the simply medicine that he is taking is for large blood pressure. He starts talking roughly things from years ago, and then he negotiations about current things. His wife said that he consultation, and talks from time he get up until bedtime. He does not give anyone a hit and miss to enter into the conversation. He is normally a massively quite party, and this is not his personally at adjectives.
Is this a sign of a nervous breakdown? Have you ever hear of a person next to this problem.Continuous chatter after surgery?
Amazing how anesthesia and surgeries effect a person's mind, sometimes permanently Your friend wants to have this reported to his doctor. Maybe they botched something up and it cause him not to have adequate blood to the brain for a period of time.
could be a gone over side effect.. contact doctor.. maybe the apprehension he went through thinking he be dying. either method consulting a doctor is the wisest thing to do
Two months? You might should consult near a neurologist.