<s>[INST] for the past week and a half i have started to get heartburn everyday for no reason i will wake up with it or be sleeping and it wakes me up or anytime during the day and i never get heaartburn ever. i am healthy active 27 year old femail i go to the gym and i dont eat fried food or food that is spicey. what can be the cause of my heartburn? [/INST] Hello and thank you for using Chat Doctor. I carefully read your question and I understand your concern. You should not worry about. I will try to explain you something and give you my opinion. There are some reasons that might be responsible for heartburn. First, you should know that typical heart pains have some characteristics. They usually are retro-sternal pains likes quizzing, tightness or heaviness. They may irradiate to both arms, neck and jaw. Furthermore, they last from 5 to 20 minutes. Long lasting pains are not typical heart pains, and in your age ischemic heart disease is rare. To exclude ischemic heart disease I would recommend a cardiac echo, a full blood analyze and a street test. Another reason of heartburn high be a gastrointestinal problem. So you should consult a gastrohepatologyst and maybe a fibrogastroscopi.Also, you have to exclude a Selectric problem doing a topical X-ray. After all this we can better judge what we are dealing with and how to treat it. Hope I was helpful. Best regards, Chat Doctor.  </s>