Sorry for the misunderstanding!basically if i eat sickening amounts of junk food my water retention/puffy nipple overall bloatedness disappears and i also start to feel less on edge/depressed etc... Chocolate is the big one for correcting me.
It sounds like you are responding positively to the food so you must need it. I'm not an expert of any sort just someone who has been around here for awhile on my own healing journey. What we do know for certain is that prolactin and cortisol can both be elevated in undernourishment (and other types of stress) so I think it's wise to avoid that type of scenario as much as possible.
I don't think you'll know for certain about your cortisol until you test it. My levels were normal for example but the rhythm was off from working night shift but I wouldn't have known had I not tested. We can all speculate of course but I think it would be doing you a great disservice since you've had issues before.