Is difficulty getting blood samples a hypo.symptom? The practice nurse cannot get blood from my left arm now and after only a couple of times can't get blood from my right arm either. Eventually she was able to draw some from my right hand using a fine needle but this was extremely painful and I am dreading going to see her now. I am concerned that she was taking blood from my left arm for years but only twice from my right - she isn't worried about it but should I be? I am wondering if there is something wrong with my veins. I am hypo. but have been told I don't have any anti-bodies but I did have a 2 hour pelvic operation 3 months ago.