Fear of success?

Is it possible to be afraid of success? I read a great post about fear in general earlier today on the Career Intensity Blog, and this is what David Lorenzo had to say about fear of success:

If you do succeed, how will your life change? Will you always have to work harder? Will your old friends resent you and drift away? What other changes will result? First of all, the more success you attain, the more your energy will multiply and feed into work, which will make it more enjoyable and less stressful. Secondly, any friend who does not celebrate your success with you isn't really a friend. Most of the changes that come with success will be positive, and you are in control of how you deal with them.

I think there is a lot of truth to this. I know in my particular situation, I'm relatively new to the entreprenurial game so I'm in that phase where you see a disproportionate amount of failure to success. I would say that this month has been the first time that I can really see "success" in my crosshairs (right now I'm defining success as proving entrepreneurship as a viable career path for me, something that I can actually make a living doing).

But I have thought alot about what it will be like when iPrioritize and SportsLizard are 10x/100x/1,000x bigger than they are now, and I'd be lying if there wasn't some fear there. Fear of all the new problems I'll face and fear of how everything will effect my relationships with the people that are important to me.

Then again, I think there would be something wrong if there wasn't any fear. I was afraid when I started SportsLizard without a lick of business or internet experience. I was afraid when I left a career that I had just spent $120,000 on an education to prepare for. I was afraid when I ventured into the 'web application' industry with iPrioritize. And fear in those circumstances didn't stop me, it drove me to work even harder. And I think that's the critical thing with fear - how you manage it. Does it cripple you or does it motivate you?