Why do i eat like a pig right after i run for 30 min?

First of all, congratulation for your 30 mins run - I've tried before but then stopped.

I think you're just low in energy that's why you always feel hungry after the run.

To back it up, I recommend you to eat cabohydrate after you run. It depends when you run, if in the morning (porridge with fruits), if in the afternoon (pasta with meat and veg, snack - banana), if during night time (rice with meat and veg. Oranges)

I hope this helps.

u might have been a pig n a former life. Maybe ur remembering

just kidding. ur body needs fuel