Experience of pain in severe heart failure

[Cheesechomper24]

Hi, I am a parent of a child who has severe heart failure. Currently spends majority of time resting- seated or in bed. Due to communication and cognitive impairments, it is not always easy to understand what they are experiencing pain wise, other than what we observe through their behaviour. I was wanting to know from those of you that have/ are experiencing severe to acute heart failure, what different sensations or pain you feel in different parts of your body? Thank you very much