I think my instagram got hacked?

[Girly Girl]

So I went on instagram to find facebook friends because I connected my instagram account to my facebook account, and when I go find friends from facebook, there are people there that Im not friends with on facebook, I do know those people in real life and some of my friends have them on facebook, but I am not friends with them on fb but it has them on instagram..... and i am not following them on instagram either

and Ive only logged on to my instagram account off my phone and no one elses.....

Could someone have hacked my account and connected it to their facebook and thats why Im seeing these people there?

sorry this was kinda hard to explain