Its interesting how so many people believe that herbs and high dose vitamins are safe, because, there is no clinical trials done on them. If there were not any clinical trials done on pharma meds, then everyone would think they are perfect as well.
But youve noticed the side effects of taking these 'adaptagens' so at least you are savvy to it, so many people munch those things like they are sweeties..highly dangerous stuff and with absolutely no govermental vcontrol of what actually goes into those pills. I was similar, I tried herbs and preg on advice, and they put me through the roof and my god did they cause some serious upset stomachs and anxiety, absolutely horrific, but the crazies on curezone say this is ok because its 'nautral' , insanity lives it seems.
Yes there are side effects with propanalol, thankfully I havent suffered any of them, like the majority of test cases, but obviously like anything, even coffee some folk do get side effects.. but its been an absolute godsend. But stay off the Ambien, that is a benzo as it attacks similar gaba receptors, they are a horrible horrible drug. Obviously, not taking any pill is our goal and being fit an healthy! but sometimes its essential for healing and sanity :) but its a suggestion, might be worth a punt for you.
I was opposed to meds after my short stint with benzos thanks to my doctor, but when the anguish is causing what it is (I know the feeling 100percent hon) then it is the best course of action. Look into the action of a beta blocker, preventing 'adrenaline' surging and fight or flight reactions, hence why I believe its a good choice.
One bit of advice if you do try it...because it blunts the beta receptors response, if you are suffering from hypoglycemia, then it will blunt the realisation you are having a hypo attack (shaking, anxiety etc) - so remember to eat every two hours, even though you wont feel like you need to. I set my phone alarm to remind me :))
There are also some ex users who used it with great success alongside vitamins (once it had calmed there systems down enough to tolerate the vitamins), just do a search on the AF search box. It helped my decision on trying it.