I have a diabetic friend and when he recently tested his BSL I asked to do mine for fun (!) and it turned out it was 2.2 which is VERY low. It had been 5 hours since I ate, and I had had a drink of alcohol, but still seems low to me. I read that bypass surgery can cause reactive hypoglycaemia and wondered if the sleeve might be the same? I called my surgeons office who said they hadn't heard of it there, but they were not surprised it might come form post surgery dietary restrictions etc and to see my GP for how to monitor and treat it which I am doing tomorrow. In the meantime I wanted to ask if it just me or if anyone else has experienced this?