I had a SAH 4 months ago and just returned to work for only 4 hour a day, I had previously worked 12hrs shifts with rotating from days to nights every 4 weeks. Don't see myself going back to that rotation ever again. But, I have not had a day go by that I have been headache free. It has been a battle just working 4 hrs. Maybe I came back to work to early! I am close to retirement, but didn't want to go out this soon. I found this Forum by accident and it was great to find out that I am not alone Thanks!