I've never heard the term "super stall" before so won't try to explain it.
Q (or more properly, q) is an aerodynamicists shorthand for dynamic pressure. On an old fashioned aeroplane with cables and pushrods (known as "reversible controls") you get force feedback that's s function of airspeed. On a modern aircraft with irreversible (FBW or more likely hydraulic controls) you don't get that feedback. So designers incorporate q-feel to give you that differing control force sense with increasing airspeed.
G