Do you think being depressed is a normal state? I don't get people who are afraid to take meds because they think it will "alter" who they are, but have no problem living with mental issues that alter who we are.
Basically, how the meds work is on the chemistry in the brain. That's it. Different categories of meds work differently.
Think about it like this. Saw your doctor prescribed a medication to help your blood pressure. Would you have any qualms about taking it? Do you think it would alter who you are?
Anywho if you are really concerned, I'd bypass your general practioner and go see a psychiatrist if you could afford it. They can probably better help you diagnos and chose which medication might be fore you.
Patience is bitter, but its fruit is sweet. --Jean Jacques Rousseau.