I’m a house manager my apartment seems like it has mold. Can I sue

Depends but not likely. If you are an employee your recourse is workers' compensation. File a claim and ask for medical care. That being, mold...

Do I have a case?

Sorry to hear that. Please note that unless received medical attention there really is no case worth handling; it would be much to small for any...

If you signed a release then no you cannot sue. If you never got medical care, regardless of the reasons, not likely going to find a lawyer to take...

Is this personal injury or even a possible legal matter?

There is no case as you were not injured. Ask for a refund and make a complaint.

Not reallly unless you suffered an injury and received medical attention. Seek a refund and make a complaint to owner and corporate.

Wrong legal category. Hire a lawyer and do not talk to the state attorney and or anyone else associated with the incident.

Unless you received medical treatment and require on going care, a lawyer is not going to want the case. Seek a refund and make a complaint.

Am I at fault for this accident?

Yes you were at fault. Who else would be? Either pay out the claim yourself or notify your insurance co.

Unless you received medical care its not worth doing in my opinion. Seek a refund.

Seek medical treatment immediately. If you are having PTSD symptoms, let a doctor refer you to a specialist. Report the claim to your insurance...