FND (formerly known as "Conversion Disorder," "Hysteria," etc.) is unfortunately, being slapped on patients by docs that are too lazy to figure out what actually going on with patients.Likewise, modern medicine still knows very little about the human body & thus does not have tests to identify everything that goes wrong with it. But docs MUST appear to have answers (and be able to bill insurance companies) so they claim that unexplained symptoms are mental in origin. It's a travesty. So many friends of mine nearly died or were left with permanent injuries/disability because doctors assumed they're symptoms were "mental" & presribed psychiatric/psychological interventions instead of real medical treatment.
Please be aware...Xanax is only approved for short term treatment (few weeks max). Sadly, docs write scripts for years or decades, never bothering to tell patients that it's benefits/calming effects are short lived (due to neuroadaptation) yet adverve effects worsen the longer a patient is on it (as with any psych drug or med that alters neurotransmission/neuroreceptors).
Benzodiazapines can actually cause a paradoxical worsening of anxiety (frequent panic attacks, or even akathesia--which can be deadly), along with a host of other psychiatric symptoms (iatrogenic med-induced psych disorders), and physical symptoms & health problems.
Additionally, withdrawal syndromes can be severe & prolonged & virtually no doctor is properly trained in slow, safe, tapering regimens, nor are they trained to identify withdrawal effects, thus leading to patients receiving addtional unnecessary & harmful psychiatric disorder labels.