Sue.
As someone who over the last 6 months has suffered many hypos due to medication issues, no I don't think it is paranoid. Once you get the symptoms.....test ! There are the limits we should normally function in, a wide range from 4 to 8.5 mmol/l as a Type 2.
Now if you were a Type 1 then those low levels can lead to unconciousness, coma and without putting too fine a point on it Death if it isn't dealt with properly. I cannot say at what point all those symptoms will cut in as we are all individual in how our bodies will react.
As a Type 2, then you like me will usually get to a trigger point at a low level where your body will say, " Bl**dy hell ! and dump glucose into your blood stream so causing your Bg levels to rise, therefore you are in no danger from Coma and Death in those circumstances. However it can happen if not treated and you are on Insulin user. However, if you drive or operate machinery you could be a danger to yourself and others, due to the impairment of your cognitive functions.
High's or Low's are not good things at all !
Ken