It could be paranoia espesialy when your smoking you tend to think very deep and put things together that point to this.
Even when your not stoned your thoughts will still be there but maybee not so intense.
you probably don,t want to ask coz you look stupid if your wrong and anyway you know what answer you,ll get if you ask, so there,s no point is there.

Use your head and see if your thoughts are just thoughts or not by doing your own bit of detective work.

I can imagin how you feel , coz i bin there and got the tee shirt ........
It took me about 3 months to find it was paranoia..