i logged on with my lvl 60 Barb todaY AND saw a wirlwind opiton i clicked on . now all my gear is different and wrong and my skills are wrong. how can i fix this?
If it was an eternal character, then likely you have been boosted to lvl 50. Part of that is a selection of recommended/suggested builds one of which is Whirlwind for Barbs 
BTW - DON’T click on the Mid Winter Ward in Kyovashad if you want the items for a seasonal character. Its a ONE TIME ONLY per account - many ppl including myself got caught out and I now have all the gear for my newly created Eternal char
I played him all the way to 60, not booosted. plus 35 points into other skills, how do i get back to how he was?
Unfortunately, you will have to rebuild him, like the Million Dollar man…
The good news is they gave you a million gold which might cover half of the cost to get your aspects back.
Was still an upgrade for me though, I took it as a chance to go back through and improve my build.