<human>: Can you give me the gist of the text in a nutshell?

My dad [68 M] has recently passed due to his COPD and a short bout with Pneumonia. He was ill for pretty much the entirety of my life, 26 years in total if I recall correctly, and I was helping him/taking care of him for, well, my entire life. Recently he couldn't leave the house anymore, so I more or less knew what was going to happen sooner rather than later, but everything still took me by surprise.

The timing was absolutely awful, due to the fact that I've recently had surgery - and after I came back home from the hospital the very first thing I can fully recall is paramedics taking my dad to the hospital. He was mostly unconscious and was breathing via a ventilator until his death - so I couldn't talk to him on the phone, and visiting the hospital was out of the question due to me not being recovered at all.

My recovery also meant that I was unable to go to the funeral - which I've actually fought against, but my doctor told me that might be unwise this soon after surgery. I feel really fucking sad that I couldn't even say goodbye to him, even if it was after his death. The last thing he said to me was "I love you, son. It's going to be alright" before I went to the hospital for my surgery, which is not true because it's seriously not alright at the moment. I honestly don't know what to feel, and how to behave right now. 

I have even not told any of my friends... I'm sure they'd all say the same things and feel really bad, and I don't want to tell them, because I don't want to dump my problems on them, since they all have their own stuff they have to deal with. The only reason I'm even posting this here, is because my therapist suggested that I should tell someone, because I might be sustaining some form of denial by not talking to others about his death.
<bot>: Dad died, I had surgery so I couldn't go to the funeral or say goodbye to him, shit sucks. Also, some backstory since for some reason I felt that I had to type it out.