I get REALLY angry when I'm being fed?

i remember when i was 4-8 years old, if a food was even the slightest diffiult to eat, parents or grownups will feed me by hand & this annoyed me so much because...I CAN DO IT MYSELF IM NOT DUMB. & nowadays if a friend or something gives me a bite of food by their hand i will get this fury! i want to throw glass & kick things over. i just didnt understand why they thought they could feed me when in reality they get it all over my mouth & i could do it so much better. I dont think this is normal. is there any underlying reason for my craziness?