1 doctor weighed in:

I have a vagus nerve and faint if constipated.Had bad attack sun., almost fainted w diarrhea after.I've been hungry and losing weight w no cause since?

1 doctor weighed in
Dr. Steven Hebert
Pathology

In brief: Vasovagal reaction

You are having a vasovagal response while straining.
There are many things that can trigger this response in people who are prone to get this. I can't think of anyway you can avoid going to the restroom. I was going to suggest stool softeners so you wouldn't strain so much but i see you almost fainted during a bout of diarrhea. Usually people avoid triggers but in your case, not sure.

In brief: Vasovagal reaction

You are having a vasovagal response while straining.
There are many things that can trigger this response in people who are prone to get this. I can't think of anyway you can avoid going to the restroom. I was going to suggest stool softeners so you wouldn't strain so much but i see you almost fainted during a bout of diarrhea. Usually people avoid triggers but in your case, not sure.
Thank
Get help from a real doctor now
Dr. Adam Smith
Board Certified, Internal Medicine
16 years in practice
438K people helped
Continue
100,000 doctors available