Blocking Myself?

Recently I've been feeling as if my abilities are locked up. I know I have psychic abilities, but I think I've been subconsciously blocking them. I constantly have headaches, but they are fleeting, meaning they'll come and go randomly. They come right above my temple, stay for a little while, go away, or switch sides. I think it's myself feeling presences or blocking information.

I've had a really intense experience a few weeks ago (one of my other stories), and basically convinced myself it wasn't happening.

For a few weeks before that, I've had a feeling one of my guides watching me going to bed each night, (I rarely see ghosts, just "feel" them). But ever since that one experience happened, I haven't felt him. I think hes still there, but can't be a hundred percent sure.

I've tried meditating, which hasn't worked. I've tried to ground myself, but haven't ever successfully "felt" it before.

Can anyone please help me or tell me how I can unblock them. Any help will be appreciated! The headaches hurt, and I can barely keep my focus up in school. I have a way of lessening the pain via "refreshing" my energy, but doing it in public would draw unwanted attention, cause I make a noise through my teeth, and hold my hands out in front of me to run my wheel of energy around.

HELP IS APPRECIATED!