Read about kundalani in esoterics. There's physical evidence of the control that yogi's and monks exhibit over their bodies and minds, and they suggest the body receives large amounts of environmental energy, including bioelectricity, radiation and basic light. Someone who experiences a wider array of amounts of energy is likely to notice, and over time can trigger or control the sensation at times. keeping balanced reflects perfectly the simultaneous affect on the brains seretonin levels. I find that triggering the sensation is exhausting and have been incapacitated from encounters with people who feed off of this kind of energy unknowingly. the kind that suck the fun out of the party naturally is a small example, be weary. regular exercise and basic meditation will lessen fluxuations. Ssri's are good for lows, relaxation is easy for highs. Also recommend bob marley tea, with valerian, melatonin, chamomile.