Thank you for your responses - everyone has been helpful, and instilled a lot of hope in me. One thing that I am positive about is that I do know as time goes on, I will definitely feel better.
I am a survivor too and was depressed at the end of 7 months of chemo. I was hospitalized for depression/anxiety afterwards.
Yes be glad to be alive every day and gain faith and hope that you will live a long and enjoyable life. But remember you have endured a treatment that was stressful.
The whole process is extremely exhausting and can leave you feeling down.
I personally would talk to your doctor now about how you're feeling. I wouldn't wait any great length of time before doing this.
I would also look into the possibility of psychotherapy. Talking through how you feel can sometimes help. Illness can raise a lot of questions about a lot of things.
It could be that you just need time and space but I would also talk to your doctor. If nothing else they can reassure you that how you're feeling is normal.
I think now that all the dust has settled, you can see how serious this was. Sure, you're a survivor but you were facing a lot there for awhile, and now you are reflecting on all of it. You were in "survivor mode" and can finally relax and are probably really coming to terms with it. Cancer is a very frightening thing to hear about one's self. Congratulations one beating this! I'm sure there are cancer survivor groups where you can share this with others, and get some support with it. I do wish you all the best and continued good health!
Additionally, even though you're now considered a "survivor", your body may still be going through the denial stage of having cancer.
I would give it a month or two and see if it clears up, if not, then you may want to contact your PCP at that point.
Of course, if you ever feel depressed to the point that you may want to hurt yourself in some way, then I would definitely contact a doctor.