Why do we eat?

BWLS (before weight loss surgery), I ate for many, many reasons:

• It was noon (time to eat!)
• I wanted to try something new, or have a new experience
• I was bored
• I just "wanted a taste"
• I was happy and wanted to celebrate
• I was sad and wanted to carb it all away (pasta worked well for this)
• I didn't feel well and thought I needed food
• It looked/smelled good
• I didn't want to feel deprived
• I just wanted a snack
• I was hungry
• I thought I was hungry

Now, here are my reasons:

• I get hungry
• I get that "run-down" feeling because I haven't eaten in a while
• It's been more than 3 hours since I ate, and I know that if I don't eat now, I will start to feel really awful in a bit

That's it.  No "because it tastes good", no boredom relief.  Just pure physical need.  Weird.  I'm still not used to it, and I don't know how long it will take me to get there.  I do know, however, that I don't think I could have gotten to this point without surgery.  I know many people manage it, but I wasn't one of them.