How do you cope with knowing friends also have TMS?

So I got the HBP book, and one thing is, I never read any of Sarno's books when I combatted my RSI. However, my friend has a real problem with the idea that she may be repressing anger. I can understand-- no one would want to admit that and it seems like an odd concept, to have anger buried somewhere that you're not even aware of, and for what reason?