Sorry to hear about your Health issues,Hang in there.By Midnight shift do you mean third shift(12:00-8:00am)? If so I have a feeling that your work schedule contributed to your issues.I worked third shift for three years and I could tell that is was wreaking havok to my system.Humans are just not programmed to eat "lunch" at 3:00am.It probably took a solid year of working the day shift before I felt that my system had reset.