Can I be fired if I was really sick and I missed 4 days of work and I have a doctor's note?

Yes, in GA, you may be discharged for this. A doctor's note does not protect the job, unless the employer wishes to accept it.

Yes. You violated company policy. Unless company policy requires it, they don't have to give sick days. And then you left for something that had nothing to do with sickness. Your company doesn't have to keep you.

Yes, you can be fired for missing work.? You can be fired for wearing a blue shirt. You can be fired for no reason. The real question is: Will you win when you appeal a denial of refusal of Unemployment Benefits? Probably not. I would fire a work who failed to show and didn't call I call that Job Abandonment in my business, I cannot do business with employees who cannot get to a telephone and have no one on the planet, not one person, who can communicate their whereabouts and intentions to return to work.

An at-will employee not employed by the government and with no contract and no union, can generally be fired at any time for any reason or no reason at all. Of course, if one is fired for being ill, and that illness is a disability or a perceived disability, the person may have a legal claim.

Even when you are legitimately sick, you are required to notify your employer prior to your absence - in accordance with your handbook - unless you are physically unable to do so - i.e. in coma. If your employer is covered by FMLA (over 50 employees) and you are an eligible employee (worked for employer for over 12 months, has at least 1,250hours of service worked, and work in a location where the employer has at least 50 employees within 75 miles) and your reason for leave is a serious health condition and you notified the employer, then you are protected from termination for up to 12 weeks of leave. If you do not meet these qualifications, yes, you could be terminated even though you have a work note.

It depends on your employer's policy(ies) and possibly how you are treated compared to others who may not be in your "protected-class"-sex, race, age-40+ years, etc.