It is hard to advise you without knowing what the behavior was or on what basis you were harassed. In employment law, not all "harassment" is illegal. There is a very specific definition and the conduct is only illegal if it because of a few legally protected reasons. If you feel comfortable sharing the reasons you are being harassed and what that harassment consists of, we can point you in the right direction as far as remedy. It would be a very, very rare case that qualified for WC.
If you have a medical condition which renders you unable to work for some time, FMLA (your state has an equivalent law as well) might be your best option, asuming your employer is large enough to be compelled to offer it (50 ees in a 75 mile radius)and you otherwise qualify (at least 1 year of service, worked at least 1250 hours in the past year). Your state is also one of the very few which does offer disability insurance. Even if you do not qualify for FMLA, you might qualify for benefits there.
To apply for FMLA, you will need documentation from your doctor which indicates you are suffering from a serious health condition, the date that that condition rendered you unable to work and ideally the date you can be reasonably expected to return. Your employer may have a form for your doctor to use. Contact your HR department or whomever handles leave and request the form. It is impossible to know wat your employer's requirements are for requesting leave but you are still required to follow those. It is important that you let your employer know that you believe your condition falls under FMLA. Just calling off sick doesn't protect you.