I have a question which I'm sure you can (and will?) answer. It's about the Tower of Joy. The image we get from Ned's description is pretty powerful. But it doesn't make sense. The top three kingsguards, including the lord commander amd the best knight in ages, Ser Arthur Dayne are present there. Lyanna is in the tower, she asked Ned to promise him something. This, so says the general consensus us little Jon Snow, who is Lyanna's and Rhaegar's. No sense denying this ;)
However, what are the Kingsguards doing fighting Eddard? Eddard would never hurt Lyanna, nor her child. The little one would be safe with Eddard as well, him being a close relative. So I ask you, was there someone else with Lyanna and Jon?
You'll need to wait for future books to find out more about the Tower of Joy and what happened there, I fear.
I might mention, though, that Ned's account, which you refer to, was in the context of a dream... and a fever dream at that. Our dreams are not always literal.
Also, did the Kingsguards know what was in the Tower?
Certainly.
Cheers, I really hope you will answer these questions for me, I'll not bother you again if you do, I promise hahaha.
Merry Christmas btw, it's almost on us!
And a happy new year to you.