Dead on accurate (speaking as a dad).

I am guessing you are not a parent. (old person phrase warning) If you were a parent - you would understand. But (back to real life) maybe you can relate if you have a pet or maybe a very young neice/nephew.

There is NOTHING you would not do to protect that person. Your heart breaks when you can not help. My "guess" is your dad *barked* at you because he is frustrated with HIMSELF - for not being able to fix your problem. He is hurting too.

Try to be patient with him, and ask him to be more patient with you...

I think you will both turn out okay.