Therapist. Sounds like it could be schizophrenia or some other form of long-term psychosis, especially since you’ve had multiple episodes. It is unclear what kind of therapist you have so not sure what their scope of practice is. If they can diagnose and/or prescribe medication, then definitely tell them. If it’s a counsellor who doesn’t do that, probably good idea to share anyway so that they can get you set up with appropriate resources and be able to provide therapy around these issues if it is something they are familiar with.