Not really... I have thought a long time about it and I definitely know I feel pansexual. No amount of ignorant people claiming it doesn't exist is gonna change that. Don't let that pull you down. You alone can know who and what you are and who and what you like.
The only thing that did and does get me thinking is reading different definitions for the same term. That's probably why I haven't pinned down my gender beyond "non-binary". But there are so many different possible expressions of agender, bi/multigender, omnigender/pangender (which according to some are the same and according to others work similar to omnisexual and pansexual), ...... Sometimes it gets to be too much and confuses me even more.
But never listen to anyone who tells you you're only doing this to get attention. Because, guess what? They're only saying that to get attention by denying you your share.