Hi everyone just wanted to know your experiences when your INR is high (mine has shot up to 7.3). I've just done a test as my INR had been stable the last few weeks at 3.7, my therapeutic range being between 3 and 4. I've been Ill all weekend, violently sick all day Saturday and not able to eat all weekend. Still feel a bit jittery now but much better! I immediately assumed being ill all weekend caused the increase but the warfarin clinic said this would have no bearing on the result unless I'd been on antibiotics etc (haven't taken anything but a couple of paracetamol all weekend and my usual cocktail of drugs). I felt unwell most of last week with a dodgy stomach but never know if this is just 'normal' illness or related to lupus/APS as don't usually suffer stomach problems.