I cannot preach the wonders of low dose naltrexone enough. I asked to have it prescribed after i was diagnosed with mecfs and it does help a little, but where it really helps is with PTSD and i wish people were screaming that from the mountain tops.
I have chronic CPTSD and before I started taking it I hadn't had a restful night's sleep since i was in my early teens. LDN was night and day in terms of difference. It took a couple of weeks to kick in but when i did, my sleep was transformative.
I went from my usual bare wires on waking to feeling like i'd actually had some restorative sleep and that hasn't gone away as long as I've kept taking it.
It has minimal side effects and very few, if any, counter-indications and I honestly don't know why this isn't the first thing they do with someone who has a ptsd diagnosis. It could save lives.