I, personally, have no experience with Trazodone, however, from what my understanding is, it could possibly be prescribed, on an as needed basis.
Withdrawal, it would need to be tapered down. I have learned, that with meds, that are taken, as needed, sometimes, since it's not consistently in your system, the withdrawal could, stand to reason, be minimal.
You sound like myself, sometimes, when the pdoc, has recommended a medicine, I take the wait and see approach, and take my time, to make an informed decision, about whether or not, I want the medicine about to be prescribed. Kudos, to you, for thinking things through. It's your body, after all.
There are other meds, out there, yes. Are there reasons, why your pdoc may feel this is the more ideal of meds, for you? With your history, etc, I'd imagine, your doctor would try to give you what they feel will work better for you. (at least, we'd all hope so, right?!

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How about, writing down, all your questions, and thoughts, before your next appointment, and just rattling off a series of questions to your doctor? Even with some of the supportive words, given here?