@ jonkster, I think it was me that said that rather than FKiwi. Not that it matters.
@Sweet Old Man...By the way, there is absolutely no hurry to get any spin training done, unless you feel compelled to... as a sort-of 'get back on the horse' therapy.
Some of us flew for a few months, or even years, before undertaking such training.
If you think it will help, go for it. It may well give you a big confidence lift. Don't be too worried though if it doesn't. There's plenty of time.
What you are describing amounts to, in my mind, as a form of PTSD. Try not to be overly concerned at having a normal (white knuckle) reaction to something that your head is telling you is relatively minor. Sure, your head is right, but the reaction is pretty normal, given what that guy put you through.