I noticed two things last night that I feel point to proper blood flow. Several times a day my ears would ring, for seemingly no reason, they have not rung since the procedure! Also, every night as I layed there trying to sleep I would feel and hear a strong pulse in my head. I tried to hear that last night and I couldn't! Even laying very still and listening very quietly, all I could feel was the very slight beat of my heart, just as it should be.