So much damage from Wii Sports??  

lol! thats is very normal! when i first bought my nintendo wii, i played it for like 6-8 hours straight without stopping (bathroom time LOL). this game is a very good workout and yes i was in pain, very very painful and tired that's for sure. but i enjoy every minute of it. so don't worry! you will get more pain and get tired later. have fun with you wii games! lol

We got a Wii sports for Christmas. I played the tennis, golf, and bowling game. The next day my arm hurt so bad I felt like I had really been playing sports for hours! It was crazy! I didn't think it was going to have that effect! The thing I am worried about is one arm being extra strong from playing wii and the other one not! So I'll have to remember to switch up arms from time to time so I don't look lopsided! It's fun though!

Yes me and my family we were hooked on bowling, and we could not lift our arms, its exercise so if you are moving muscles that you are not use too moving, you will feel the effect, lets admit it is worth it, I was in pain still playing the game, I use to switch hands lol, I love the wii so much fun for the family, although my daughter bought it for my grandson, me and my mom played it the most, lol, we stayed up till 4 am bowling one night.

Reminds me of my first Wii days. The pain would gradually reduce as you get used to the physical strain, especially if you play Wii a lot. You should also try other physically interactive games.