I've been feeling a little off lately. Very tired and weak, lightheaded, low grade fever, high anxiety...?

Things like that. Yesterday, I was exercising and felt so out of it so I cut my workout short. A few hours later I felt some anxiety, so I took some pion flower drops. A little after that I was watching Dr. Oz and the screen started to become fuzzy. So I jumped up in panic and ran to the bathroom. As I ran to the bathroom i realized that the tip of my tongue was numb and my heart was beating 100 miles an hour. When I looked in the mirror my bottom lip was extremely white and so was my tongue. After hyperventilating for about two minuets I started getting my kids ready to head to the doctors. The whole time I felt like I was going to p out. (You know when you get that tingly feeling in your head and body) So I finally made it to the doctors and he had an ekg done and all it showed was that my heart was racing a bit. My pulse was up and my blood pressure was up. I have a few more tests to do and hes going to have a 24 hour ekg hooked up to me. The doctor gave me some metoprolol tart 25mgs. Since I've been home I've been feeling a little nauseous and tired and I had a temp last night of probably 99.9. In the beginng of the night I couldn't really sleep, felt anxious and had chills. I'm a little better now, very tired and a little down and a very little light headed. Also I've been feeling nauseous on and off and yesterday I also felt nauseous. Now I'm still in the process of checking if I have kidney stones for sure. Not sure if that will help any, but what I'm asking is what you guys think about this. Any diagnosis you can think of, any comments or advice??