Whatdreamsmeans.com gives a similar explanation, though it also makes the distinction between being strangled and doing the strangling. While both sources say that it is symbolic of being repressed or limited in some way, this resource says that if you dream of being strangled, you are feeling difficulty in expressing and speaking out and dealing openly with your emotions or inner struggle. On the other hand, to dream of strangling another person is, interestingly, still about you: It likely indicates you are intentionally trying to stifle your own emotions or to get a handle on a part of yourself that feels out of control or about to betray your inner feelings or thoughts to others.

It's likely safe to say, in this case, that if you are dreaming about strangulation, it may be worth taking a little time to yourself to hash out if there is any place in your life where you are feeling unable to fully express yourself or wholeheartedly grow in a direction you wish to.