I have been dealing with ibs constipation from more than 8 years. Everybody says that eating less at night keeps your digestive system healthy and you will wake up energized in the morning. But if i under eat and sleep with hunger my mornings are like hell with my rhinitis flareup, bloating, body pains, lethargy, dry skin and mainly constipated. Funny thing is I feel better eating unhealthy food than healthy food. If i  eat heavily foods like biriyani, milk shakes ice creams etc. I feel better in the morning than when i eat healthy food. But eating like this is making me gain weight and i am very much confused of how to eat satisfactorily and lose weight.