Zoloft - could an increase in dose cause headaches and backpain?

No, it's totally cool. I'm normally taking 100mg of the zoloft and 2mg of the klonopin. I started years back on .5 mg. I think that my system built a tolerance to the med and or my body processes the med quickly. At one point I was prescribed 4mg, and at that point it really was too much. So.. I tapered back until things felt right at 2mg. Now that life has turned upside down and without therapy, we're going up to 3mg with the intention of going back down to 2mg. If I continue therapy, I would expect to be altogether off the med. But... no health insurance can be a bit of a pain. The strange thing is that I now have more work than I can handle, and I would think that normally that would be a good thing, but the body is telling me otherwise. Weird, but I guess that it really is a sudden change, one that I like, but my system does not! Also... working + acting as part time / full time dad makes things all that much more interesting... But no, that med has no effect on my sleep, at least at the doses that I have been given.