PTSD Recovery and Managing Autoimmune Diseases

I'm not sure if this is an appropriate support group. I'm a PTSD survivor. When I read about my AI diagnosis', blood tests, and urine tests there's a common thread. The nervous system. My last and worst abuser died at age 97 and I took care of her for the last four years of her life. I was 70, and now 73.
Years of therapy did not improve my confidence. I wanted a mother so badly I couldn't face reality. When she wasn't there to tell me what to think and do it got bad. Nerves on fire. I now see a PTSD therapist weekly. I'm better and find it takes a lot of mental energy to adjust my thought processes to improve my life. At the same time I try to manage autoimmune flares. It's a challenge. I'm focused and strong, and would love to hear about your coping skills.
I journaled every day for ten days, which is unusual. I couldn't get privacy, the best processing was in the shower. Finding legit people to complete small but expensive home repairs is not easily resolved for a senior woman living alone. It's a circus. I don't want to go down a rabbit hole.
At the same time I was coping with a month long flare in my hands and arms. When I was at my limit I asked my friends to come to my aid. It's hard to ask for help. I don't have family.
Yesterday I told my PTSD doctor I made an appointment with my meds MD because I knew my nervous system had been on fire and had panic attacks. She said you didn't have panic attacks, you had PTSD attacks, explained the difference and what was happening in my life that led to a PTSD attack. I never heard of a PTSD attack.
How do you cope with simutaneous PTSD triggers and autoimmune flares that wreak havoc on your nervous system?
Thank you.