Wow I can imagine how frightening, upsetting, uncontrollable all that feels.

With regards to medicines, many here have trouble like that and have given good ways they cope.
I think the best is to have a daily check off or time check off, so when some aspect of you does take meds, it's checked off and any other aspect knows to look at that paper. It isn't foolproof, but it might help you begin to communicate better within yourself?
Allowing all of your selves to post in this forum might feel like opening a pandora's box...but I'm a firm believer that a person's individual system doesn't really allow for things it isn't ready for.. you know?
Plus, there's nothing that you or another aspect of you can post that your system doesn't already -inside- know or deal with. It can feel scarey in that, maybe you aren't sure you want to know, yet?
So whatever decision you make on this, it will be the right one, imo. Ok? TC