I ran a mile

I actually ran for a full mile on my treadmill on Saturday Night.  It felt awesome.  I got pretty winded by the end but i never gave up.  Sunday I didn't feel good (I had a headache) so I didn't get back on my treadmill like i had planned. Today I feel like I have been hit by a mac truck.  I hurt in places I didn't even realized I had.  In the morning I am going to try to get up so I have time to go for a 20 minute walk just to work out all the dang kinks I've now got!

I thought exercise was supposed to be good for you!