Mary Beth -
Re an antidepressant, I've found them helpful, so I would always tell people to consider them. Cymbalta has been especially good for me, and it often helps with aches and pains (used to treat peripheral neuropathy in diabetics in addition to depression).
Still, every medication works differently for each person, and most have side effects. I haven't experienced too many side effects on Cymbalta myself, but have had negative experiences with other antidepressants in the past. A final thing to consider is that some drugs have a withdrawal or "discontinuation syndrome" that can be uncomfortable and confusing, to say the least. Among them are Cymbalta, Paxil, and Effexor, although people have experienced similar withdrawal symptoms with other drugs.
Are you experiencing depression, or symptoms of depression (being depressed isn't necessarily a symptom of having depression!)? It's difficult with things like lupus - for me, I've been told I'm either depressed or have IBS for decades, or that there's nothing wrong. I'm not sure when lupus kicked in, and I do have depression and IBS, but there's an overlap in symptoms and it can be difficult to tease them apart. Still, if this is a doctor who knows you, and who you trust, I would at least investigate antidepressant medication further with her. Also, do people around you think that you seem depressed, or different? If you do have symptoms of depression, how long has it been going on?
My mom likes Cymbalta and says she won't go off of it primarily because of the pain relief she's experienced while on it! But I didn't notice much of a difference, so it really depends on the person.
Some antidepressants are more stimulating, like Wellbutrin. For some people, this is a nightmare of anxiety and panic, and they feel like they are going crazy, but for others (like me!), it's an awesome boost of energy and offers much needed focus.
I wouldn't say to try an antidepressant just as an in-between fix, until the Plaquenil kicks in, though.