Sacral chakra?

[Roxane9]

It is sooo hard to find anything online about the symptoms of chakras other than blockages and problems.

Today, I interacted with someone not memorable or anything and for a very short time, but they were really high-vibed or something and I didn't notice til after I left. The person was like that but when I left and sat down I got flooded with higher vibes than I normally have. (It's not because I liked talking to the person because I did not. It was nothing.) And then after I got flooded with that (not too much. just higher than I normally have and I really felt it.) THEN, I got this pleasurable sensation in my lower back like in the center and lower - and I STILL have it. It was really strong at first and for a long time. It is still quite strong. I have never experienced anything like it before in my life. Is that my sacral chakra? what happened? did it open? When I first felt it I thought - o that must be a chakra. I think that chakra has always been open but now there is that pleasurable feeling in the lower back and it's very strange. Is it something else? What is it? It's kind of distracting to me.