Yes, you certainly can have hypos with type 2. I had my very first hypo when I was on metformin only. I walked into a walk. I had all the symptoms too. To this day anyone who tells me you can't have a hypo on metformin alone gets a shake of the head from me. I've had plenty of hypos ever since. I didn't have any hypos on diet control only though, although I know this can happen too. The only way you do know you're having a hypo though is to test your sugar level and if low then treat it using the 15 g of fast acting carb and wait 15 minute rule. Hypo symptoms can vary from person to person too, so important to know what your symptoms are. I'm fortunate to recognise quite quickly when I'm having one, but some people are hypo unaware which must be very scary for them. Also symptoms can vary with each hypo too I've found. Sometimes I get bad nausea and other times I don't, etc. But I always remember my endocrinologist drumming into me that every hypo is dangerous and must be treated quickly because the first thing that goes with a hypo is your judgment and it is the last thing to return. He gave me a full on lecture one time about it because I was stupid enough to think I was ok to drive if I was feeling ok. He said no, you have to wait half an hour minimum before you can drive after treating a hypo. So I try and do the right thing... well most of the time. lol.