I was quite nervous, more about the blood flowing out than the needles, and I have quite low blood pressure, but everything went fine. You feel it when the needle goes in, but it’s not that bad, and then you don’t feel the blood coming out at all. It takes about 15 mins to fill a bag. And then you stay sitting/lying for a while (especially the first time), and get a cold drink and snacks afterwards (crackers, biscuits, chocolate!).

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