<s>[INST] I have uneasiness in the chest since more than one month. My heart beatings are fast when I sleep on bed. Some there is a catch in my ribs. Please suggest me what may be the cause. I am also taking tablets for acidity and gas from one week. I am 45yrs female. 20 days back my cholestoral was one point high, and sugar is at higher end in the range. [/INST] Hello, I passed carefully through your question and would explain that your symptoms could be related to acid reflux.  For this reason, I recommend performing a fibrogastroscopy in order to investigate this possible issue.  A 24-48 hours ECG monitoring would help examine your heart rhythm trends and exclude possible cardiac arrhythmia.  Hope I have answered your query. Let me know if I can assist you further.   </s>