Are there different kinds of "feeling full" ?

Lately (last 4 days) I have felt full in more than the usual way... meaning my little stomach feels full after meals, but also, I feel full for hours after I eat.  Unfortunately, the full feeling is interfering with my caloric intake.. I don't think I am eating enough. 

Does the  full feeling depend on what types of food you eat?  My diet has changed slightly, just due to outright boredom of the food I was eating.

I upped my fiber intake to help with poopies because I am taking a little more iron.  Iron just messes with my even taking the Solgar Gentle Iron.

Is it the fiber that's making me "feel" full?

I am also drinking about 60-80 oz of water a day, but peeing constantly.

Higher fiber make me full quicker and stay full longer.  Very possible you are experiencing the same thing.

I was really constipated after surgery for like 4 days and litterally could only drink a shake a day and i felt stuffed all day and recently i had gas bubbles so bad i could barely eat for two weeks..i started eating raw vegetables that is what gave me the gas bubbles but i stuck it out and the carrots and califlower has now made me regular where since surgery for the first almost 5 mos i had to take dulcolax once a week to go. Maybe your is constipation since u r taking higher iron just another possibilty too.