I don't want to go to the doctors and have them say nothing is wrong with my foot/ankle. it's a little swollen. can't put any pressure on it.?

You have a problem : Don't make assumptions if it hurts that bad you need to seek treatment.

Need to see a doctor: If you can't put pressure on it there is definately something wrong. Get it checked.

Stress fracture: Without a specific injury, a stress fracture can still occur. The inability to put weight on your foot sounds like this sort of injury.