Noise under front driver side/Questions from mechanically-challenged

[tonto]

Howdy. Took my truck out camping over the weekend and went over a couple of bumps (some perhaps a little fast...) and since I've brought her home I've noticed a thunking sound coming form the driver side front feels like right under the foot pedals.
Now to note, I have no experience diagnosing/replacing things like tie rods or wheel hubs. It's sad but I bought this truck to learn everything I've been ignorant towards mechanically. Being said, I want to make sure everything is in working order as I will probably have to throw her on some axle stands and get under. Can I get some tips and how-to's to make sure I get a good look at all the essentials while I'm down under? Thanks folks!

[SixStringMadness]

I had a similar condition. It turned out it was the swaybar connecting rods/bushings. It was prominent when going over bumps that caused the truck to sway, like going over a speed bump at an angle.

Does this sound like your issue, or just bumps in general make yours thump underneath?