I have started Jogging 1 week ago. After 2 days of regular jogging I felt so much body ache. But now it is completely recover from ache and I am doing continuous Jogging. I am feeling fresh and energetic in a whole day. My grandfather says it is due to fresh air I am breathing in the morning while jogging. I would also suggest you to go for jogging in the early morning and feel the difference.
I believe jogging and running is the best exercise possible for someone to do. Not only does it make you feel better physically, but mentally, it brightens everything up. Good luck and I hope you have a life long affair with jogging!
I agree with chenderson. Jogging, or even brisk walking, can be amazing exercise, and instead of making you feel "tired," it actually rejuvenates, and at least for me, it gives me energy! Good luck, and keep it up!!!