If you were shot, either negligently (unreasonably carelessly) or on purpose, the person injuring you should be liable for your medical bills (and lost wages, if any; and possibly pain and suffering); if they don't pay voluntarily, you could sue them. The problem is, however, there is a time limit for how long a person has to take legal action, or sue, called the statute of limitations; once the statutory time period has passed, you may no longer sue. The limitations period in GA for personal injury  (e.g. being shot) is only two years from the date of the injury; therefore, if it's been "about 3 years," then it is very likely too late to sue. That said, sometimes the statutory period can be extended, or "tolled"; you should consult with an attorney immediately about  your case in detail, to see if there might be any grounds to bring a suit after 3 years. Good luck.