If you are still dealing with health issues, I offer the following [for your consideration]:
If you have not read this article written by Dr. Robert Cathcart, M.D. http://vitamincfoundation.org/www.orthomed.com/titrate.htm I STRONGLY encourage you to do so, i.e. why would you be contemplating "...tampering it back..." as regards you ascorbate intake?
As "grist for YOUR mill" I will relate the following about myself, "I have taken a Bowel Tolerance dose of Ascorbic Acid, in HEALTH, not illness [of which I have had virtually none], basically every day since 1994, amounting to [currently], on average, 50 to 80 grams, in 6 to 12 divided doses."
I have experience nothing from this but the very best of health!