The most important thing you should do if you fall shopping is obtaining immediate and appropriate health care.  Many stores are trained not to call for fire rescue for injured customers as it might indicate that a more serious injury has been sustained.

Plaintiffs are questioned and criticized by the fact that fire rescue did not come or that immediate care was not their number one concern.  If you are unsure as to whether or not you are ok in any way, you should seek medical care immediately.  The best decision is to call an ambulance as to not risk any further harm to yourself.  You should not worry about the cost of your medical treatments or how long you will have to remain the waiting room and the hospital. 

Your health and well being are most important.  Be candid about your injuries and medical history.  Failure to do so can make you the subject of criticism in the courtroom.  Also be sure to ask for a copy of the surveillance camera when available to be provided in your slip and fall claim.