I take buspar, (buspirone) added Zoloft per docs orders 2 days ago. I'm feeling better today, not anxious. Could it be working already? Only added 5mg liq zoloft.

Zoloft (sertraline) Very possible, depending on your tolerance & how long u have been on the buspar (buspirone). Great news that u r responding to tx well.
Maybe. Generally, adding a new antidepressant on top of an existing treatment will require about 2 to 6 weeks to notice a positive effect. A small number of people may feel effects sooner, but true beneficial effects take time. Glad to hear you are feeling better, thus it would be best to incorporate your other treatment strategies while waiting for further positive effects.