Normal - "conforming to the standard or the common type; usual; not abnormal; regular; natural" - Dictionary.com (first definition under normal)
I have spent years trying to figure out what normal is. And my problem with finding an answer is actually shown in the very definition of normal (the other definitions do not help the issue). Because everyone has a different idea as to what the standard is. Unlike an inch, for which a standard has been set, there is no real standard normal for people (there isn't something out there for me to measure myself against to decide if I am normal).
So, I wonder, as I look at the other definitions, if any of them help me.
Free from any infection or other form of disease or malformation, or from experimental therapy or manipulation. Sorry, but I still have that cough. Plus, I'm pretty sure glasses kill this one too (my eyes aren't "normal").
Approximately average in any psychological trait, as intelligence, personality, or emotional adjustment. I'm still trying to figure out if I'm "normal" in this sense. I'm pretty sure I'm not fully (I snapped at Ace Tuesday night because my hormones threw me a pity party and I decided to show up. But I got some nice pajama pants and some M&Ms before the end of the night.).
Being at right angles, as a line; perpendicular. Um... I'm not perpendicular, but this definition is related to math, so I don't think it really counts.
Containing one equivalent weight of the constituent in question in one liter of solution. While I understand each individual word, the combination of them all throws me off (but I'm not a solution or part of science, so again, it doesn't count).
The average or mean. I'm back to not being sure if I'm average, but knowing that I'm not mean (does this mean I'm not normal?).
So, for now, I'm spending a little time studying some philosophy (from Wikipedia right now, so I'm not exactly doing any deep studying). All I do know is that while I'm not sure if I'm normal, I've realized that most people don't know if they are normal either. So in that regard, I guess I am normal after all.
But I'll probably keep searching for a better idea of what normal is than what dictionary.com says for its definitions.