Well, PTSD is an anxiety disorder. Most professionals probably wouldn't diagnose GAD when you have PTSD because the PTSD would account for it better. PTSD is so many things. If things keep happening, it makes sense that it would keep exacerbating it. That would be really hard. Therapy and meds would help to boost your protective factors so that you can cope better. I don't think that anyone can ever count on a life where things settle down and bad things completely stop happening, so your best bet is to improve your coping skills. Not everyone who experiences the same trauma always develops PTSD, and you can learn to be more resilient. I would never tell anyone it's easy though. It does seem like trauma sensitises us, and future trauma affects us more easily. But there is always hope too. You might want to talk to your T and ask how much better you can get at resilience.