I had an experience like that, too, and I was MISERABLE! I've removed and added various things to my diet and I think my culprit is supplements. As of Friday I'm off of any supplements and I've had zero gnawing hunger issues. At some point I will add one supplement at a time and find out the trigger.

Congrats for finding your trigger. Being hungry ALL the time is horrible!! Especially when you know you've been eating a good meal