Conversation: The conversation between human and AI assistant.
[|Human|] Hello,when my sister in law laughs or coughs she goes numb and faints. she can remember falling to the floor but nothing else?im just wondering what this could be as it has happened a few times and im worried. i looked on the internet and its coming up with ms.wondering if you can help?
[|AI|]  HI, thanks for using Chat Doctor It is possible that she is experiencing presyncope (sensations before fainting) and syncope (fainting). Syncope occurs due to a decrease in blood pressure. In some persons' syncope can be stimulated different situations. This is called situational syncope. It can be stimulated by urination, defecation and, as in your sister-in-law, coughing and laughing. It does indicate that she has MS. She may want to see her doctor for assessment. I hope this helps