My big toes are burning

Hi,
The past week when I am at tennis practice my big toes and the ball of my feet will start burning.
This is very painful and annoying!
I have tried to look up what could might possibly be the problem and try to fix it.
I don’t think I have athlete’s foot because my toes aren’t cracking or itching in between my toes at all or cracking and itching anywhere else on my feet, it’s just burning!
Not only does it hurt when I’m practicing, but all day now.
Do you have any idea what this could be and how to cure it?

Thank you,
Alison