UGHHHHHHHH !!! I can understand your frustration - 7 days of extra agony you definitely don't need that now : ((((. Olive oil can not be considered medicine under any circumstance , so feel free to try it. Also, you might consider trying Milk of magnesia or some other softener - I don't see how it can possibly interfere with surgery in any way. They are crazy !!! It is hard not to follow doctors instructions but I think that they assume that we are all idiots and would not know the difference between meds that we can take and one that they said we should not so it is easier for them just to say " DON"T TAKE ANYTHING" , than to go into detail what you can take and what not. I am not a doctor but as far as I know only blood-thinning substances are not desirable , as well as some heavy sedatives and some lines of antidepressants because they can interfere with blood clothing and with anesthesia.
Don;t panic dear friend - you see, my CRS had no problem with ANY supplements or meds, and he is in practice 30 years - I guess if he had problems during surgery with any of those, he would definitely know by now ; ).
I would just stay away from aspirin and ibuprofen and other NSAIDS that can make you bleed more than needed, maybe fish oil too. You can check o the net if flax seed is anticoagulant - if not there is absolutely no reason to stop it :IMO:
TAKE CARE