I have had the exact same thing going on for the past two weeks. I'm still on lovenox and I HATE it...I'm in sooo much pain and I get my blood drawn DAILY. I still have an INR of 1.56 and the doctors look at me puzzled as well...they refuse to change my Warfarin until a week has passed, but in the meantime my stomach aches and I feel like pure crap! I hate this stuff!