I know I've taken people's aches (headaches usually). I always thought of it as 'lightening the person's load': Your ailment is a burden, and
I'll willingly take some of it to ease you.
I'm fairly certain that my cat helped me through my last cold: he followed me to bed, in which I lived for the first 2 days. For awhile, he was
nose-to-nose with me, and stayed with me while I slept -- normally he vacates the bed after about half-an-hour, but he stayed with me until I got up.
I felt better within 2 days, and noticed he was more lethargic than usual -- no tearing throughout the house, no killing the duck rug, no playing with
his catnip toys, no sitting in the window. Just sleeping and eating, and with a cold, wet nose to boot.
The only counter-point question: Can kitties catch colds human colds? He wasn't sneezing or wheezing, didn't hear any coughs... but he
wasn't his usual self.
I guess the experiment would be: Person X has an ache. Without asking for specific details, wish to take their ache. If/When you get it, feel it out,
and then compare notes on the ache.
However, I think it'd work better (or have better results) if it's someone that you have a connection with... not just a co-worker, but someone you
live with, or see on a daily basis. I'm thinking it works better because the energies are more in sync, like girls who menstruate at the same time of
the month after living with each other for awhile.
(....I wonder if a guy could take away/ease a girl's menstrual cramps... A stomach-ache, sure, because both have stomachs. But with no uterus... hrm.
Pick your religion/spirituality, there's a lot of instances of healing via psychic energy, a lot of rituals, and a general belief that one can be
psychically healed -- either by oneself or by other people, long-distance or right next to you.
Random sources with more random info regarding various forms of psychic healing:
The Roots of Consciousness
-- a bit of this and that throughout histoy with regards to
The Science of Psychic Healing
-- downloadable book by Yogi Ramacharaka
...hard to find stuff that isn't ads.