This does sound strange. If you are signed into the site (as you certainly were to post this message), you should see both your public and unlisted synths at either of these two addresses:
I am assuming that all of the synths which you've created so far you have set to 'Unlisted' to keep them private. If that is the case, then it would be appropriate for me, when I visit your profile, to see "STDenney has not created any public synths yet." because the whole point of an unlisted synth is that others cannot see it unless you give them the link, however whenever you are signed into your account, obviously *you should* be seeing them listed there.
If you don't mind, could you tell me whether you remember marking them as unlisted when you uploaded them? If you did, could you create a public synth and see if anything changes?