Open Question: Why do I feel this way? What is wrong with my body?

Therefore, all Corporation recently I have been doing is laying in bed reading, I have begun to take a nap (which is really strange for me, because I have trouble falling asleep), I began to get hot and gastrik reflux ( However, Bu Guangming could be as three times), and I get blurred vision (also I have cold hands and feet of a lot of time), I have also been hot flashes and chest pain, and sometimes a lot. In addition, I was tired all the time, why do I get tired, and chest pain and lightheadness? Does anybody know why my body Acting like this? All the information will help, thank you:) ♥ PS 16 so there is no instant menopause for me:) LOL