Looserivets,
I guess or hope your Dr. has given dietary advice already (avoid/eatlots of) if not, google sees all, but I would imagine you've already done that.
I have read a book that lists a correlation between food/health conditions and blood type - pm me with your type if interested. You might look at trying some Berberis 6x once a day for a week or so. Aids elimination/tendency to kidney stones etc.