I woke up with intense pain about 3 inches in front of my tailbone, about in my center, and after a couple minutes you ears started ringing so loud I couldn t hear anything, my vision began to grey out and all I could see was a very blurry picture in a circle, and I began sweating profusely all over my body. I ve now mostly recovered, but I feel extremely weak and tired now. Any idea what could have caused this or what I should do about it?