Most doctors will be thrilled to hear you say that antidepressants have helped you immensely in the past. That makes the decision for them. Antidepressants are not like narcotic painkillers. You don't get "high" off them. People don't usually manipulate to get ADs, so I doubt your doctor will see you as drug seeking. There are a minority of idiot doctors out there. If you run into one, just make an appointment to see someone else. (It happened to me.)

Primary care docs don't usually see a need to immediately refer you to a psychiatrist. Some PCPs might want a one-time consult. When you call for the appointment, they will ask what you are coming in for. Just say that it's a personal matter that you need to discuss with you doctor. You can add on something generic like: "I'm having a hard time handling stress and want to talk to the doctor about it." But you don't even need to say that. Then, when you get there, you talk about what you want. Patients cry in front of doctors often, and they do not get freaked out by it. (Again - unless the doctor is an idiot, which is good to find out early in the game.)

I had not read the whole thread when I started to write. I just read it all and I'm so happy you decided to make the appointment. Most likely, it will go just fine and you will be glad you went.

Let us know how things turn out.