strange86

Just about every day in the afternoon I get tired at a certain time, and I experience more OCD. My mind starts getting weak and sometimes I can't do things like make decisions well, think properly, or study for too long (not good when you're a college student). One solution to this problem could be caffeine; drinking a cup of coffee or tea sometimes helps me be awake. The problem is, just like aspartame and a whole bunch of other stuff, I can't seem to get a good answer about caffeine. Is it really bad for you? How much is bad for you? How much do you have to drink to be addicted? How bad is it if you're addicted? It doesn't seem like there's easy answers to these questions.
I sort of think that I've already experienced caffeine addiction and then got over it. When I was a pre-teen I used to drink one caffeine drink every day, until recently when I stopped doing that this year. Before this year, if I stopped drinking coffee/soda, etc., I would get a headache. I'm hesitant to get "addicted" again (does that sound like addiction?), and am concerned about my health. But I CAN'T stand having these swings in OCD and fatigue. On a particularly bad day the OCD could really explode when paired with fatigue, and I don't want that to happen. I have scrupulosity, and I do NOT want to feel guilty and like I'm sinning any more than I already do!
Anyone have any ideas?
Thanks,
Travis