Iam feeling exhausted and tired every day.i sleep well but still feel like lying down even when I do small home chores.in recent months i have severe nausea, dehydration, stomach pain, headache and indigestion before one week of periods.it is too tough for standing or sitting for long or doing any kind of work.i get easily irritated due to this weakness.please advice of any supplements will help.i have been obese for past ten years