Sensitive To Other People's Emotions

I have searched for similar experiences, but with no luck. To start, years ago, I moved back into my parent's house to care for my father who was a stroke victim and bed-ridden. I have always been extremely sensitive to other peoples emotions, and find it emotionally exhausting to be around large groups of people for long periods of time. After caring for him for a few months, one night while sitting on the floor playing a game; I felt what I can only describe as (and I don't think I have the words to adequately describe exactly what I felt in the room) pure electricity...energy. So amazing, in that moment I knew that is always there, always around us, but for some reason, we are unable to tap into it. I also knew that my father was about to have a seizure. My cousin noticed the look on my face, asked what was wrong, and I said, "Daddy's about to have a seizure." I walked to his hospital bed at least 30 seconds before it began, had the bite in my hand and was ready before it started. I'm looking for answers now because as I get older, my sense of knowing, or heightened intuition gets stronger... There are other things, because I'm a very private person I won't go into it here. It's hard to write this. But 3 days ago during a period of high stress, I once again felt that electrical energy, but in a different way. I felt my mind go to a different place, felt the energy entering the bottom of my feet, going in waves to the top of my head, it lasted for several minutes. It was the most relaxed I've ever felt. I've had problems with tendinitis in my shoulders, but not since then. On a lighter note, I often set off store theft monitoring devices going in without packages, instead of on my way out. I always feel as if I'm searching for something, that's just beyond my reach. The last piece of the puzzle, very frustrating. If anyone has answers or advice, they're greatly appreciated.