Yes, you may still be eligible to participate. If you or your child are struggling with one or more of the following symptoms, even without a diagnosis, you could be eligible to enroll: Unexplained mood or behavior changes OCD Abnormal restrictive eating behavior Seizures/convulsions Anxiety disorders Depression Intrusive thoughts Brain fog or cognitive issues Chronic fatigue Motor & vocal tics You will be asked for more information on why you feel you have a suspected diagnosis. Our trained enrollment team will have a few simple questions to help you determine whether or not you are a good fit for the study.