um how much do u work out PER day??? im a swimmer and i train 5 hrs a day 6 days a week....and yes its hard and i feel lik crap sum of the time but i keep going.....BUT if ur having injury problems (if ur knees and ankles hurt) try not to use as much pressure and shorten the workout a bit.....also make sure ur eatin enough (that COULD b y ur tired) but NOT too much.....

also yes, one day can make a BIG difference because it makes it easier to skip the next time, and then skipping becomes an "ok" thing and suddenly skipping becomes a habit, and eventually you just go less, and then u stop, so the only reason not to go is becuz of injury.....or if ther is NO way that u possibly can (but theres a way 99.9% of the time)

I work out about 3 hours on M-F and 2 on Sat and Sun.. I cannot take a day off, or I feel like crap.. I feel not quite right.. I am missing something..
I feel that you can do something less each day, like I may walk instead of swim or lift weights instead of the elliptical.. But I need to move each day or I would not feel right..
This is to become a habit and we should do something each day for our health..
Each meal, each workout, each day I am closer to what I want my body to be..
You can do this, now get out there and do it!!!