Memory problem, what could be the cause?

So last night I had a conversation with my dad. He was expressing how worried he was about me since I have so much troubles remembering certain stuff. He thinks something is wrong with me :p.

Like I have a hard time remembering places, streets, locations (even in my own tiny village, which I've lived for 18 years), names, people, stuff I was doing, dates, etc.

For example:
- when I'm driving my car, and I have to get to somewhere (I have been numerous times), I can only recal some images but never entirly how to get there.

- I'm doing a task and someone asks me to do something and I clearly heard it and said yes, after the task I will just forget.

- Sometimes I'm talking to people and I'm trying to find a word to describe something and then I just forget what I was even talking about in the first place.

- Going to get stuff and just forgetting in the middle of the proces what it was. And it ussualy takes a while before I can recall.

Sooo what do you guys think? :p Personal experiences? :) Should I be worried?
Memory problem, what could be the cause?
Post Opinion