I know that doesn't seem like a very motivating or inspiring statement, but unfortunately it is true. Just as life isn't always rainbows and lollipops, neither is exercise. People are always claiming that 'oh exercise releases endorphins and makes me feel great' which is true, but sometimes the psychological barriers can trump the feel good hormones.
This is where I am at with exercise at the moment. I have spent the last year or so in an attempt to regain my past fitness levels. Things keep getting in the way (shin splints, an operation, engagement, life...) and it is really annoying. I know it is up to me and that I can't really blame these things.
In the past few weeks, I've been attending Booty Camp (like boot camp, but for women only and no whistles). The good thing about it, is that it is helping me to re-establish a routine and that it is forcing me to exercise and strengthen my whole body (instead of just my legs like when I run or ride).
The bad thing about it is that the day after each session, the DOMS (delayed onset muscle soreness) in every little muscle that isn't used to being used reminds me of how unfit I am compared to in the past. And my current physical inability to do certain things (like push-ups) at the number of repetitions I used to is also very depressing.