Hello Liz and Gary,
Welcome and thanks for posting your query to Healthcare Magic.
I have gone through the complete history of your husband. The very first hing is to reassure yourself and relax - your husband has nothing serious. He has all the simple and general problems which are experienced by one another in day to day life.
For the rash
kind of thing you can fix an appointment with a dermatologist
who can see and guide you best. None of his symptoms are related to his skin problem. All these gas problems and headaches
are simple problems and can be managed by improving on diet.
Let him have a lot of fiber containing diet and plenty of liquids per day.
Ask him to reduce the work stress
and so yours too!!
Hope these information will help.
"With good health wishes for your husband"
Dr Sanjay Kumar Kanodia
MD (Dermatology & STDs)