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Hi Has anyone struggled with air bubbles causing an issue with insulin delivery? I have been on the pump for over a year, but the past month or so has been a nightmare. I have phoned Medtronic a couple of times now, but I can’t seem to get this issue sorted. Generally on the second day after a set change my blood sugars rocket due to an air bubble causing a blockage. I am careful purging at the start, I have doubled checked how I complete a set change. It seems fine but then the bubbles appear at some point. Latest advice is to stop wearing the pump in my bra to keep things cooler. Any advice would be greatly appreciated.