How can i tell if broke a tick's head off in me?

i found a tick on me and i ended up getting it off with tweezers however i cannot tell if i pulled its head off or if i got him fully out. im not exactly sure what it is i am suppose to be looking for. i dont know what a tick head looks like. lol. the area in where he bit is a little red but i know its from pulling him out. and there is a small bump there but it doesnt look like a bug head or anything it looks more like a small bug bite. im just not sure if i need to go to the hospital or not. the doctor stated because the tick was still flat and small i shouldnt really worry. they stated the tick would have to be on there for 24 hours and it would look bloody and engorged. and just out of wondering if somebody has a tick head in them, how do they take it out?SOMEBODY LET ME KNOW LOL!!!!