Yes. From what I've heard him say in interviews and videos, he had type 2 diabetes (caused by when he used to drink peach schnappel by the truckload), plus some kidney problems. He was overweight at certain points too, particularly between 2010 and 2012, caused by overeating junk food (he actually mentioned in a video that he comfort ate during this time due to some personal problems going on).
In addition, he had I think his appendix or gall bladder removed in 2019, where he was in hospital for a while. Then in 2021 or 2022 he was in hospital battling Covid and only just managed to pull through.
He's also talked about the fact that he used to eat chicken wings by the truckload too, sometimes for breakfast, lunch and dinner. If he was eating a lot of fried chicken wings, it's bound to have had a detrimental effect on his health and cholesterol levels.
One health issue tends to compound others, for example a lot of diabetics are overweight and it can also put strain on their heart, so that may be what happened to Currie. It could've also been Covid or Vax related, but we'll never know for sure.
The irony is, he wasn't even a smoker or big drinker, plus he looked in good health in recent years, younger looking than his age in my opinion.
Whatever the reason for his passing, it has totally out of the blue and is indeed a sad loss. He still had more to give, and a no bull**** true teller like him is much needed in today's world.