Food Passing too Quickly? (TMI)

To preface this, I understand that most people on this website are not medical professionals and cannot give medical advice here. However, I am currently in between insurance and cannot see a doctor at this time, so I figured I would at least do some research on my own.

For a while now, I've been concerned that the food I eat is passing through quicker than it should. Say I eat something like corn which you can definitely see coming out. I can see evidence of that as little as 4-5 hours after eating it. I have also seen other food pass through undigested within hours of eating.

No diarrhea- at least, not anything that is overly concerning.. I'm not losing weight rapidly, and I'm not having any kind of cramping or stomach pains. The only thing that I've noticed is that when I am on a "diet"/healthy eating plan, I am hungry ALL the time. I've always thought it was purely psychological, but maybe there's a reason why eating junk food keeps me full where eating a diet full of lean proteins, healthy fats, and fruits/veggies leaves me feeling so hungry.

I know part of the problem may be because I eat so quickly- a habit I was working so hard to break before starting a retail job. I probably don't chew my food enough before swallowing. However, I'm also thinking there may be additional factors involved, and I'm wondering if there could be something going on that is affecting my ability to stay on track with any kind of weight loss plan. I usually get so hungry after a few weeks that I end up binging because I cannot stand the hunger (we're talking stomach growling, light-headed, legitimate hunger).

I'm just wondering what might be going on and if there are any simple things I can do to improve things. More probiotics (a supplement, yogurt, kombucha)? Trying to chew food more thoroughly? Apple cider vinegar or lemon water? The first and last should be fairly easy- though I don't think I can avoid drinking water with meals which I heard is really bad for you.

But how do you slow down your eating and take the time to chew your food more thoroughly when you only have 10-15 minutes to drink any water and eat lunch some days? I've gotten more into things like Rx Bars and protein shakes (Trader Joe's Vanilla Pea Protein with Ripple Unsweetened Pea Milk- I may also make green smoothies with unsweetened protein powder) which means I can at least get some healthy fats and a dose of protein in a short period of time, but I still feel like I eat way too quickly, and even though it's only a few times a week now, it's hard for me to go back and forth between rushing to eat and eating slowly.