some of my favorite comics 3

Here, in Captain America #224, Cap goes through disorientation as his face seems to have changed, his memory is whacky, and he has some painful bumps on his arm... what has happened?  This issue, when I was a kid, was so odd and offbeat, that it took several reads to straighten out the flashbacks (a hazard of being a kid and knowing nothing).  But, this was one of my first comics, and it has a striking cover.  We also get a guest appearance from the Avengers (did I ever mention that I love Beast as an Avenger?).  This would have been my first Cap comic too.