Not so glorious food

Lately I seem to be having a problem regarding food and my consumption of it. 
Last year I'd put on some weight, not a huge amount but enough to make me recoil in horror at what looked like the beginnings of a gut. As someone who has been into fitness, healthy diets and the such like consistently for close to a decade this was something of a shock. 
I managed to lose a bit of it when sure enough it happened again at the start of the New Year. More wobbly bits. So I took to more running and weights and the odd day of low calorie intake. Due to over-sleeping and my usual problems weights has slowed down some, running I manage to do at least twice a week, once if things are bad, like this week.
Seemingly in lieu of that activity my hunger has increased. Is this due to comfort type eating or the side effects of my meds? Or as a pal remarked, are you just actually hungry? 
Yesterday this necessitated the downing of much tea, toast, jam and tea. Today, mostly soft cookies. And despite the shoveling of those soft cookies down me I am still kinda peckish. This is of course making me feel guilty as once I cave in to my hunger demands it makes me feel over-weight and generally pretty rubbish about myself which is something I don't need to add to the general rubbish feelings I already have anyway. 
So now I find myself trying to shove in manic exercise because of the food that I have taken in that I perceive to be hazardous to my weight and that cannot be good. I seem to be on the road of manic eating, massive guilt, trying to get in a lot of exercise but failing and then worrying about putting on weight again because I haven't exercised enough or ate the stuff I should eat.
What a mess.