Scoobster
I wouldn't sweat about it dreams are normally a reflection of other anxieties in life so hardly a concern about stalling and spinning or spiral diving but probably something else where you do not feel in control or where you feel events are taking over.
flying is something that you do control so attaching those worries indicate other aspects of your life are perceived and I stress the word perceived as being out of your control.
so more likely to be job worries, financial worries, health worries or relationship worries than flying
Pace