So last night I had dinner, 6pm and injected 1u of novo rapid to cover it. Went up to 7mmol 2 hours later. At 9.45pm went to take my lantus of 10u. Bloods around 6.5mmol. 5 mins after taking my lantus my libre said 3.8 and a down arrow. A bit confused, I tested my blood, 3mmol. No hypo symptoms at this point which is very unusual for me. Are 3 glucotabs, waited 10 mins, tested 2.9. Panic mode set in and so did an incredible amount of sweat. I drank a whole glucojuice. Waited 5 minutes, 3.3mmol. 10 mins later, 4mmol. 35mins later 4.3mmol (a very slow increase) eventually I reached 5.2 and ate an alpen bar. My libre read LO for about an hour or so. I peaked at 11.4 at 2am. I've had minimal sleep due to this and now getting ready for work, around 7mmol. I was moving over to levemir this week but this has frightened me so much. Any ideas what happened?