Not really, and you would be surprised that you feel more of a lightness, clarity and not miserable.
It's the same for running, it's hard, but you don't feel miserable when doing it.
I do exactly that. Usually I quit one week before Ramadan. When quitting, it's common to get headaches. When quitting before Ramadan, you can alleviate it with a bit of Aspirin.
When I didn't the headaches were terrible in the first few days of fasting.