Symptoms of something or just paranoia?

I have always eaten three meals a day and had one or two snacks in between (fruit etc.)

Recently I am getting hungry fairly often - every 1/2 hrs...

For example, this morning I had porridge and honey with a cup of tea. Then I had a pear. An hour later my stomach is rumbling with hunger pangs and I am considering brunch? Could it be stress/an illness of some form/or am I just thinking about food too much?

Thanks guys!

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