Married to someone with Anxiety
medium.com
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My anxiety attacks were exactly the same, right down to crippling fear, and needing emergency medical help because I thought I was going to die. It doesn't help that most first responders are ill equipped to deal with mental illness (not their fault, they are trained in keeping physically damaged people alive long enough to get them to hospital) so they strap on the ECGs and tell you and people at the time that they suspect that you are having a heart attack.
People with mental illness need all the support they can get. Contrary to popular belief, it's not something we can 'snap out of'. It's very destructive, not only to the person suffering, but for their relationships and people close to them as well.
Back to the article though; If you get diagnosed with Cancer, your loved ones are also offered counselling, but for mental illness there is no such structure. The carers are left to work it out for themselves, often getting incredibly frustrated as there are no physical symptoms to work with.
To this day I have no idea why my partner stayed with me during my worst times - it was incredibly hard on them (and probably will be again), and I would have not blamed them for leaving if they had.
(Whereas we have imperfect but often very effective, even miraculous as my mother observed first hand in her nursing career drug treatments for the other major mental illnesses, depression, bi-polar disorder, and schizophrenia.)
Anxiety is partially a metabolic problem.
I have two friends whose stimulant use turned them into alcoholics. One quit meth amphetamine, then the anxiety started. She discovered vodka after getting hooked on benzodiazepines.
Alcohol is broken down into acetate, which is an energy-rich molecule that is easy for the brain/nervous system to use as fuel, especially when those cells are insulin resistant (and therefore have a hard time using sugar as fuel).
fixing the metabolism, and reprogramming the 'fight or flight' response, is an option too.