Sepsis -- your grandparents called it blood poisoning, and it's a nasty and often fatal condition. Treatment is arduous and often fails.
UNLESS you are treated with high-dose intravenous vitamin C (20,000 mg - 100,000 mg daily) or, many reports suggest, with 6 or so grams of lipospheric or liposomal vitamin C per day, orally.
ThIs link covers a bit of history on the use of vitamin C to cure scurvy and viruses, and contains two YouTube videos -- only one of which (the second one) is still available. The vid is well worth watching; it's about a family that saved their husband / father's life by fighting to get a hospital to give high-dose intravenous C to the patient, which was finally begun at the point where the hospital was planning to turn off his life support because he was at death's door and couldn't POSSIBLY get well. (The man had swine flu and leukemia, not sepsis).
Direct YouTube link for the embedded video: Vitamin C: the miracle Swine Flu cure
So sorry to hear about your kidney stone problem! I had one when I was young -- most painful physical event of my life. C apparently wasn't the issue in my case, since I began taking ~5,000 mg of C daily decades ago with no problems. I also don't know anyone else who has had stones from C usage -- it's statistically rare. But statistics don't matter at an individual level; when something happens to you, it happens 100%.
I've heard of the high-dose-C and kidney stones connection, but -- if only because nearly all mammals MAKE their own high-dose vitamin C constantly (typically, over a thousand mg for a human-weight animal; some make 10,000 or more) -- I didn't give it much credence. The link you supplied does contain a link to an article about a study that found men taking 1,000 mg daily had double the risk of getting kidney stones, so I'll keep that in mind and do some more research. I've always suspected that IF vitamin C was associated with kidney stones, it was possibly (or probably) the result of excipients in the tablets. No details on the formulation used in the article. But excipients may not be the problem, or at least not the entire story.
I wish you well and hope your kidney stone problem ends soon.
I was told that it was "probably" a result of rose hips being used as the source of C in the supplements. But this article (or was it another?) says there's no difference in the molecule between sources. So I don't know...
I manage the kidney stone problem with a daily 8-ounce glass of 7-Up, or, if the need is great, Crystal Lite lemonade mix. Both soft drinks have high amounts of potassium citrate, which chemically dissolves the stones. I still get them on occasion, but they are small and crumbly, generally, and easy to pass.
The monster stones are worse than terrible, but I haven't had one (knock on wood) in quite a while.
Glad to hear you've got things that greatly reduce the problem, and some people on this board might find the information helpful too. And, 7-Up and lemonade aren't the worst medicines I can think of . . .
You can see them on the inside of the glass when the liquid evaporates.