any medical people out there that can help me?

Jessica
Just wondering if there are any doctors/GP's or medical people that could help me with a few things since my doctors don't take me seriously. 
I'm 17 by the way
1. I've had headaches in the same spot on my head for years and they get really bad, so bad that the pain makes me vomit and stops me in my tracks from doing anything. I've been sent multiple times for blood tests but I'm fine in those departments so they don't do anything now when I go to see them. What should I do? And why is it happening nearly every day just sometimes not as painful.
2. I get discharge all the time, I am sexually active (not very often even though I'm in a 2 and a half year relationship) we've both never slept with someone else so no sexually transmitted things to worry about and I know he's not lying. I'm just wondering what it could be? I wear one of those little underwear liners everyday now because I don't want to ruin my pretty underwear. 
I can't be bothered to write anymore so that'll do
If anyone could help me or give advice that would be great thank you!