I've used crystals to take aways pain, both physical and mental and emotional. Worked on Acupuncture points with and without needles. Using the crystal to stimulate the needle, and indeed you could see the needle circling round as the crystal did. That was confirmation of it's powerful energy field.
It is good to have a crystal that you can hold comfortably in your hand. The crystal that is yours alone, and not to be used for healing, except of yourself. Ultimately all healing is a healing of the self anyway.
Look at the caverns and ledges in your crystals -- you were there. Do you recognize anyone in there? Everytime you look you'll see something new.