If I fall in Walmart and hurt my foot bit didn't break it do I have a case

you need to have damages in order to seek compensation.  Did you loose time at work because of the injury?  Did you have unreimbursed medical expenses because of the injury?  Did you trip and fall on something or slip on something?  If you did not have any damages, for example medical expenses or lost time at work, you will not have a viable claim against Walmart.