I mostly don't feel hypos at all... Very occasionally I'll feel them if I have a very sudden swing, but mostly I literally can't feel a thing... Apt timing as currently heading for one (I have a cgm and it's telling me I'm 4.2 and dropping, with active insulin - meaning without my cgm and pump alerting / suspending me, I would definitely hypo) - and my body is telling me nada... My control is tight at the mo (I'm very newly pregnant so trying to keep it extra controlled!) -- but regardless of whether my numbers stay tightly in range, or I let them go a bit 'wild' - I still rarely get any signs... When I first mentioned this to my diabetic clinic they did set to loosen my control, and my awareness would come back - but for me it didn't make any difference, even though I let my numbers go into double figures for a while -- all it did was make me feel ******... :/