Could i have an anxiety disorder and unnoticed stress that manifests itself with voices and hallucinations rather than the diagnoses of bipolar?

Yes: When someone is stressed out there can be a variety of ways that symptoms are expressed. Although psychotic symptoms are not commonly endorsed in the context of mild to moderate severity anxiety in extremely severe states of anxiety it is possible to start experiencing a form of hallucinatory phenomena. There is often an intersection with personality and developmental history as well. Stay safe!

Need competent eval: One way that it would be possible to have an anxiety disorder with psychosis would be for your anxiety disorder to be rooted in temporal lobe epilepsy. Given the fact that you have auditory and visual hallucinations, this would be a possibility. One other possibility would be a dissociative disorder that has not been diagnosed. It is of course possible to have both of the above. Dissociative disorders particularly commonly present with bipolar symptoms that remit when the underlying trauma has been dealt with appropriately. Best wishes. Please see a very competent psychiatrist.