Don't freak out, and seek therapy - and don't get bummed out about the fact that you are seeking therapy. That's a good thing.
We could all guess a million causes for this (drugs/alcohol/etc) - but in the end it doesn't matter. You've noticed something going on in your head, and you feel that it's not right.... so go see a doctor. or two. or three.
This by no way means you're headed towards offing yourself or going nuts. But still, see a doctor - if for no other reason than you've observed a disturbing and sudden change in your mental state that you can't explain. That's enough of a reason right there.
We could all guess a million causes for this (drugs/alcohol/etc) - but in the end it doesn't matter. You've noticed something going on in your head, and you feel that it's not right.... so go see a doctor. or two. or three.
This by no way means you're headed towards offing yourself or going nuts. But still, see a doctor - if for no other reason than you've observed a disturbing and sudden change in your mental state that you can't explain. That's enough of a reason right there.