And what age is your child(ren) currently?

T is 11 months and I let him deal with any frustration or fussiness while he's playing. It usually resolves quickly or he's telling me he needs something (hungry, sleepy).
But when he full out cries from either being hurt or being upset about something I'm always quick to rush to his side. I wonder if I'm not doing the right thing?
He knocked himself in the head pretty hard with a block a minute ago and instantly wailed. I swooped him up and checked his head and snuggled him for a minute and he was back to happy go lucky baby. Barring an obvious injury or accident that needs immediate attention, should I rush to him so quickly? I mean he would have been fine after knocking his head with a block. It was just the upset wail and tears that made me rush to him.

What do you think? What do you do?