There's a reason for everything that happens to people with anxiety disorder.
Our mind senses that we can't cope with all the worries so it makes us withdraw from the fight. Take a break from it all. And so we experience some degree of nervous breakdown complete with panic attacks and maybe social anxiety (we can't face people) and agoraphobia (we don't want to leave the perceived safety of home).
Trouble is, the problems don't go away. And once our nerves are sensitised every worry and problem seems to be magnified by a factor of ten.
Tasks that are well within our capability to solve seem impossible to overcome. And if we have more than two problems to sort at the same time we hit the panic button.
It's important to understand things like that so we really know what's happening to us. It's just our mind trying to be helpful and protect us: but it's help we can do without thank you very much.
To recover we must neutralise the things causing so much stress. We must accept for the time being all the strange feelings and fake physical symptoms that our zapped nervous system sends our way. Accept for the moment and forsake the search for magic wand cures. And let time pass.