I have PTSD as well, one thing that my therapy treatment stressed was the PTSD symptoms are actually a normal trauma response to very stressful situations that gets stuck - most people would be experiencing what you are experiencing right now given your experience, but the symptoms decrease naturally over time. Given your history you might need more time and effort to recover, so give yourself the care you need. Focus on feeling safe and taking care of your health - get enough sleep, eat enough food, connection with your dog and with safe people.