Thanks for all your replies. I appreciate it.
Since I posted my initial note, I have listened to less paraliminals a day. About 3 or so (it was closer to 5 previously). I guess my worry of addiction comes not only from the frequency of listening, but of my seeming beginning dependency of them to deal with certain life situations. I find myself wanting to listen to them, say, before I have to go see my parents (whom I have an awkward relationship), or meet someone if I worry about the outcome of the meeting. I guess I am worried about possible addiction because I see similar patterns of usage as when I was addicted to marijuana. I used to rely on pot to handle certain situations. For certain kinds of situations, it wouldn't feel right if I didn't first smoke pot. And I see myself doing something similar with the paraliminals. Presumably, the effects of the paraliminals should be more like a "cure" more than a "fix". But the way I am using them, I am afraid that it may even be negatively contributing to the potential long term effect of them on me.
That's what I mean by relying on them. I don't want to be in a situation when, say, if I misplaced my ipod before an important meeting, I feel even more nervous than usual, because "oh no, I didn't have my paraliminal boost", I will now definitely fail". Etc. Etc.
That was qute verbose, and not particularly articulate. Hope in so many words, you understand what I mean. Thanks.