<s>[INST] i have a throbbing pain underneath my ribs on the right side/middle and in the centre of my chest. sometimes they are short sharp pains and sometimes they throb for ages. The other day i experienced a chest pain, that, when inhaling, i got sharp pains in my neck, continuing up behind my ear also. I'm currently on my period and have been scanned in the past with queries for endometriosis. Is this linked ? I's always concerned about chest pains.  Thanks. [/INST] Thanks for your question on Healthcare Magic. I can understand your concern. It is very commonly seen that females during their menses can show weird symptoms like chest pain, chest tightness, chest pressure etc. All these symptoms are mostly due to hyperacidity and gastritis during menstrual bleeding. So better to take antacid (pantoprazole) twice daily on empty stomach during menstrual bleeding. Don't worry, you will be alright with pantoprazole. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks. </s>