Pokemon stats decreased

The other day when playing, I was training my Tauros. Orignially, I had thought the ev berries increased ev's, not decreased. So i used a couple on my Tauros to try and get it's speed ev's up, but it actually brought them down. Although, the ev's arent the problem. When i used the berries, my Tauros's speed dropped to 33. Obviously this is no where near normal for a Tauros to have a speed stat of 33. I was wondering if I could get my Tauros's speed stat back to where it was. It was at 65 before it got decreased.

 

Hey MuyDeec,

Ofcourse you can get your speed back!
You have a maximum of 510 EV points in total, you can upgrade your speed to 252 points by killing flying type pokemon, a pigeot gives you for example 3 EV points.

- Julien

 

I understand the ev's and all but what I'm saying is that its not possible for a Tauros to have a speed of 33. It's around level 20 and has a jolly nature. The speed SHOULD be in the 50's or 60's. There is no possible way for it to have a speed of 33, so I think the game glitched or something. So I'm just asking if its possible to get it fixed to its original value.