It might be worth mentioning it to your pdoc. It's not a case of sounding arrogant. Ur pdoc might be able to reassure you one way or the other. I mentioned it to mine and we spent the next few months keeping an eye on my moods and I've just had the dx of Bipolar as well as BPD. My pdoc was lovely and worked with me. She didn't make me feel bad for asking her.