Charlie, in short, yes
As I wrote in my previous post going into 'thinking' mode is a way to avoid uncomfortable emotions. And as introverts tend to 'think' more, I think this shows a clear link to detachment. Eg. emotions are physical sensations(pleasant as well as unpleasant) and if you have an unpleasant physical sensation(emotion) due to whatever reason, you can say that you flee(detach) into trying to 'think' about it - or in other words moving the focus from your body to your mind. The general recommendation is, to not be afraid of one's emotions or think that one can not bear just a temporary physical discomfort, so one should not try to avoid it but rather go into the feeling. As Leahy says, these sensations are just temporary arousals, similar to arousal experienced from exercise to give an example.
One interesting exercise is to note what events, thoughts etc triggers these uncomfortable emotions and when you feel it. It is a good learning experience, eg. taking a note of which situations, events trigger these emotions and the recommendation is to act on it just at that moment the emotions are triggered, even if it means deliberately invoking some uncomfortable physical sensation.
To give an example, for example asking for directions and going ahead and doing it, even if you hesitate, feel slightly uncomfortable(aroused) doing it. There are plenty of other examples, making a certain phonecall at the time you fear it, speaking up and taking a stand etc
I learnt from doing this that the emotional triggers for me(or perhaps I should say, used to trigger very much) was a fear of rejection. By learning what the root cause is of your 'problems' you can much better repair it
