there is no public information or official reports confirming that Prince Harry was diagnosed with PTSD, ADD (Attention Deficit Disorder), depression, or anxiety during his conversation with Dr. Gabor Mate.
Prince Harry has been open about his struggles with mental health and has spoken about his experiences with grief, trauma, and the emotional impact of his mother's death, Princess Diana. He has advocated for mental health awareness and support for those dealing with similar issues, but any specific diagnoses or details from his private conversations would not be publicly disclosed without his consent.
Please note that my information might be outdated, and I recommend checking more recent sources for any updates on Prince Harry's discussions or mental health status.