Thank you for your question. Yes, Elder has a war injury. Justice has difficulty managing attention and hyperactivity. Anne drinks quite a bit of alcohol. It's possibly connected to her PTSD, but not necessarily. At the time of this response, there is no decision about whether Fidel is HIV positive. According to a 2016 CDC report, 1 in 4 gay and bisexual Latinx men will be diagnosed with HIV in their lifetime. I believe the character already carries a lot of weight around, and I am not sure Fidel having a chronic illness will serve the reader.