I have definitely experiences a complete breakdown/intense depression and anxiety from my last two visits to my family at home. It's kind of ridiculous considering that I love and miss them, but I still get a lot of anxiety from the situation.
The point is, I came back to a couple days later and I don't think that there was any gap in my meds, just life circumstances I'm a little vulnerable to.
Also, if you only switched 6 weeks ago, maybe you need more, stress free time to really tell if the med works.