Are there ever situations where practicing mindfulness is not recommended during Buddhist practice. Could it ever have undesirable side effects or cause hindrances on the path. Or is it always the case that the more one practices mindfulness the better?
The motivation for this question comes from my own practice. I've really felt recently that mindfulness can have a negative effect on me. Perhaps swelling the ego and a lot of time contemplating what my emotions are, what I am doing and what I am thinking. This has ultimately seem very inward looking and counterproductive.
I don't really expect or want someone to diagnose my own particular quirks (you can have a go if you really want). But I do want to know if there is general advice from established teachers about the possible negative side effects of mindfulness practice and when it might be contraindicated.