There are several issues here, but I think the most important is your damages. Fortunately, it sounds like you weren't hurt. However, to consider litigating a case, you must have enough damages to support the cost of the litigation. It sounds like you may have an ambulance bill and trip to the ER, but that is not going to be enough to warrant litigation. I am sorry you had a bad experience.
Get yourself checked out by your family doctor. Do you still have any symptoms? Next, speak with an attorney. S/he will be in the best position to advise you of your rights. Good luck!
The information provided is for general informational purposes only and is not intended to be legal advice. I am only licensed in the Commonwealth of Pennsylvania and I am not providing you with specific legal advice. The law changes frequently and varies from jurisdiction to jurisdiction. Being general in nature, the information provided may not apply to any specific factual and/or legal set of circumstances and/or the jurisdiction where you reside. No attorney-client relationship is formed nor should any such relationship be implied. The information provided is of a general nature is not intended to substitute for the advice of an attorney, especially an attorney licensed in your jurisdiction. Your question, although you may believe is simple, it is not simple. You require legal advice, please consult with a competent attorney licensed to practice in your jurisdiction.