Fluid on heart after bypass

[Jazz100]

Fluid on heart after triple bypass.

Hubby had his surgery in June and has been doing ok, few bumps in the road, fluid on his lungs which has now mostly cleared and an infection in one of his leg wounds which is also fine. After a check up today he was told he had a little fluid on the left side of his heart. He will be checked again in two weeks which we weren’t expecting. He did ask if there was anything to worry about but was told no. Not sure I believe this though. I’m worried, I’ve been worried since the end of May when he had a heart attack. Can someone please tell me what’s going on now. Thanks.