Should I switch out bikes again? I've been in pain!

[karen]

I started out with a Swchinn Voyaguer comfort bike for two main reasons: 1, low price point because I wasn't sure I'd stick with biking, and 2, I have carpal tunnel and didn't want to be putting excessive weight on my hands all the time.

A month and change later, I swapped it out (Yay Performance!) for a Schwinn Super Sport flat bar road bike. I like it very much - the shifters are much better and it's a lot lighter, BUT I'm getting tennis elbow with this bike! Every time I ride, my left "elbow" starts to hurt (about where the dot is on this picture, right under the elbow: http://www.itendonitis.com/images/golfers.jpg)

A week or so ago, someone here said that a flat bar gave them problems and the different riding positions that a drop bar bike allows helped. But, I'm worried that by trying to fix the tennis elbow with a new bike, I'll upset my CTS - what to do???

I haven't yet gotten fitted at a LBS because I don't want to spend the money doing that yet if I should get a different bike anyway... I know it's important to get fitted, but I need some more advice first