One thing I've found is that tapping on certain emotions, traumas etc can relieve that trauma but also leave me feeling pretty beat up. I think one reason is that EFT takes away enough of the negative emotions around an issue and you find yourself coming face to face with truths that you just tried to hide from in the past.
Of course, the minds instincts are usually good. If it's too painful, rationalize or hide from it. Still at the end of the day, you're living a much more empowered life once you're able to tackle your issues directly.
But after all the EFT work rummaging through dark psychic closets, you aren't necessarily feeling very happy or sanguine. But it's just another easy step to get there. Tap on it directly:
"Even though I'm not feeling very well emotionally at the moment I chose to be feeling calm, loved and happy"
connected to a loving life force
detached from past pain and baggage
connected to light and love
compassion and empathy for all beings
My individuality and personality are a gift from God
relaxed and connected