roller coaster ride. How much volatility is usual?

I've been playing hold em for about 4 months; probably about 3000 hands total in that time. I went to a casino last weekend and played 3/6 live for the first time. Anyway, I found myself down about 70 big bets ($423) really quick. Partially due to suck outs and partially due to tilting from disbelief about how much I was losing. I kept playing and finished the day up about $220 and at point was up $301 (50 big bets). I played for about 9.5 hours and figure this to be approximately 400 hands.

My question is whether it is usual to have a 120 big bet swing in a 400 hand session?