Fingers?

I hesitantly tried the gym tonight to see how my finger was. I did not crimp or really try anything hard but it felt ok. It is unusual that such swelling does not seem to be linked to anything specific? I don't know how it can be so swollen, with no feeling one day and ok a few days later. It makes me hesitant to trust it without knowing what it is. I guess I am going to have to try it slowly and hope for the best? Better news then a ruptured pulley though.