Seeking comfort and advice
I've been struggling with some things lately and I've been having conversations with a counselor. They have, more than once, strongly suggested that I get evaluated for Borderline Personality Disorder. I know that I need to see a doctor, but I'm very scared. I've been treated for many things in the past, and it's never seemed to work to the extent it needs to. I'm afraid to start taking a medication again, even though I know I need to. I don't want to go through the adjustment periods if the medication ends up not working and I have to start all over. I know I need to finally be diagnosed and start treatment so I can heal, but I'm very afraid. I don't know what to do.
@TinMan89 I can see why you'd feel afraid - seems an overwhelming experience, and it's okay to fee scared. You know what you need to heal, but sometimes knowing what we need doesn't make things that easier (still, it's a good thing!). Did you have bad or difficult experiences in past, with doctors or medication?
It's okay to be scared, it's a big thing and can feel scary for sure. Getting a diagnosis, seeing a doctor can be difficult things at times. It's okay. We're here for you, and we're glad you reached out and said what you're struggling with - that's what this community is here for, to offer support 
Maybe you could talk with your counselor about how you're feeling right now, and these fears?