Does the AC analysis on LT spice find the voltage and current due to both DC and AC sources?
.AC analysis deals with frequency domain. If you need to plot a quantity as a function of time, you need to perform a .TRAN, or a .DC analysis. .DC only deals with a single point in time.

But, .AC has its own DC operation point, which means that if you prepare your circuit for a frequency analysis, it will try to deduct an op point prior to simulation. Don't forget that .AC implies linearization of the circuit.