My Mom died of her heart problems. Now my Dad had an operation for his knee . Somehow when he woke up he had problems with his heart muscle and typical signs of a stroke repeating himself getting angry and frustrated. The doctor would not tell us if anything went wrong during the operation. He also developed inflammation in the knee right away. He was so healthy when he went in for the operation.We are concerned that he might get another stroke - if it was a stroke. The saddest part is that my dad was always the most gentle, loving, kind, giving , caring person. It is really upsetting to see him like this