For me it can happen within minutes. I go from feeling like an emotional wreck and physically too, to feeling perfectly fine within a few minutes. My brain and body felt fried and now it feels in balance. I changed it merely by switching online atmospheres.
Certain things have triggered me in the past to feel this way, such as merely being in a chatroom with screwy/bad/hateful people. I used to get that a lot in the past, but not so much anymore. I feel like I can sense their energies and it repels me from their presence. Do any of you also sometimes feel infected and repelled by the types of energies people project out?