DAY 3 of low dose naltrexone for PAWS (post acute withdrawal syndrome) from opioids

Took 1mg (1000mcg) naltrexone last night around 11:15pm. Went to bed around 12:15am(?), fell asleep easily again but had a really poor sleep, wide awake at 5:45am, couldn't get back to sleep, got up for a while, finally fell asleep for a couple hrs, woke up feeling super groggy. Bad pain day, generally shitty feeling day. Nothing worse than one of my "down"/bad days (or insomniac nights) before the naltrexone though, so I don't know what role, if any, the naltrexone played. I might be having some trouble because I haven't been taking sleeping pills. Been trying not to take any drugs other than the naltrexone. I might try some herbs for sleep or something. Not sure how much naltrexone to take tonight... Only positive thing I noticed today is that my diarrhea is still gone.