It doesn't mean a lot, unfortunately. You may be getting over it quickly, which I certainly HOPE is the case. However, sometimes people have an abatement of symptoms and fever after a few days, and then there's a resurgence of symptoms. Just take it easy - stay hydrated, and be kind to your body. Don't go on as if everything is OK. Stay inside and away from others.
If you are fine withing a few days, you have most likely gotten through the symptomatic phase and you're over the virus. I hope you feel totally better soon!