chakra meditation. you probably want to open all of them tho. to do so, put your midle fingers and thumbs together (middle finger to middle finger, thumb to thumb) and all the rest down, and point your thumb right below your breast to where your abdomen starts. Concentrate on your third eye opening and chant "ohm" 7-10 times.

It is very possible that that is indeed your third eye. It's also possible that someone is trying to "invade" your mind. It's not really a paranoia type of thing, but there are many forces out there in the Internet who are able to gain access to an unprotected mind. Just make sure you're aware about whether or not you're protected, and get to know your mind. If you feel pressures at either side of your head, that's a threat, and can be prevented by shielding.