Hi there
First off, don't let this stress you out too much, depression is probably a lot more common amongst those of us with a chronic illness than you may realise. It's tough dealing with our lot in life and it is very natural that at times in your life, it's all gonna seem a bit much and start to get you down. Things can and will improve again, these things tend to go in cycles.
I have done extensive therapy with a clinical psychologist to deal with issues indirectly related to CF - e.g. lack of self esteem (it's damned hard to feel sexy and desirable sometimes when you have a constantly sick body) and a fear of striving for too much in life or aiming too high - because deep down I wonder is it worth the effort - will i ever reap the rewards of my hard work? etc etc. I would imagine these are both issues a lot of us CFers struggle with on occasion, if not constantly and i'm sure there are many many more.
Although i will be honest, i really didn't enjoy going to this person every week and having to talk and talk about it - but it definitely DID help and as a result i have been able to turn my attitude around 180 degrees in some areas of life. I highly recommend it.
Anti-depressants, hell yes, been there too, more than once and am currently on them. I don't concern my self with the fact that it's yet another pill, but then, i take no regular medication except enzymes anyway. I can relate to this concern for you though, but for the difference it will make to your life, i would say it's well worth it.
I can't comment on Zoloft, being from NZ, our drugs are totally different over here. What i do know, is that i've tried a couple of different ones, only one of which i actually like. So try a few until you find one that makes you feel closer to how you would actually LIKE to feel. Don't give up if the first one doesn't agree with you, there are many options. And obviously always double check with the doctor prescribing these, that he is aware of all the other drugs you are on and is happy they can be taken together ok.
The way I see it, we have more than enough to deal with on a day to day basis and life is too damned short to go around feeling miserable all the time, if there are relatively easy ways to combat this depression and enjoy more what time we have in this life.
Best of luck to you and keep us posted on how you are going. You can always come here and vent, chat, look for support, you are not alone. Big Hugs. <now if you'll excuse me, my charming cat has just brought me a RAT and is beginning to consume it, head first, right next to my chair!! > <img src="i/expressions/face-icon-small-disgusted.gif" border="0">