Cosmos

Y'all... Like I don't even know...

So I started over my Pokemon Platinum the other day cause I was bored. I'm sure y'all know how it is.
So I just made it to the Lost Tower in Sinnoh right below Solaceon town...
Y'all know the place? Yea, thought so.

So I think " Well there's a bunch of Gastly so I can train my Kirlia here, perf."
Then I'm climbing the tower and battling like it ain't ones business.
Then I fight the trainer that's the closest to the top of the tower
and WEIRD THINGS START HAPPENING AND IT'S UP TO COUR- Ops, of topic ok.

So I'm in the middle of the double battle with my Kirlia and Buneary beatin' some Murkrow and Misdreavus ass like cray.
and then instead of the fog coming up at the end of the round EVERY other weather comes, first it's hail, then sandstorm (keep in mind this is happening in rapid succession) then sunshine and then rain, and EACH one including sunshine and rain are hurting my Pokemon... LIKE GURL WHAT IS HAPPENING?!
I'm sitting here for like four minutes waiting for each Pokemon to get it's weather damage and then it happens twice, thrice and FRICE (?) 4 times, all the weather each one hurting me hurting me...

But even weirder is it would be like "the sun is shining brightly/the rain is pouring heavying/sandstorm is flinging shit all over the joint/hail falling down is " "Buneary has been hurt by Run Away" (and it did that for each pokemon, expect it would say the pokemons ability...

Does anyone know what the fuck just happened?