OK so I've suffered with insomnia for years and I now have hypo reactions to certain meds ie. Diazepam/Phenegan. I'll take them, get off too sleep and then be woken with a shunt of (what I assume is) adrenaline, heart pounding and all the other horrible sensations related to a hypo. Does anyone else have these reactions to certain meds? I'd been ok with them previously but now the reaction is awful and I feel unstable for days after. Could it be related to cortisol going too low maybe?