What's the difference? Or both are the same?
Did you hear what I said? and Did you hear what I had to say?

Question

What's the difference?  Or both are the same?
Did you hear what I said?     and      Did you hear what I had to say?

Answer

"what I had to say" carries a little more connotation, or suggestion that you may be talking about a particular subject, especially something deep, or something long about a particular topic.

I wouldn't use the second one if it was to do with regular conversation, probably, but it definitely wouldn't be wrong to, it just sounds a little off.

Answer

They mean the same thing!