The GFI should be fine on an AFCI protected circuit.
Right, AFCI's are not required by code for bathroom circuits already protected by GFCI's. As stated in my original post I live in an older house. The house was built in the 1920's but was not electrified until REMC's were established in the late 1940's. I've replaced most of the wiring over the years but this particular circuit is original. As you can imagine with older houses a mouse or two will find its way in every so often and I always wonder what they are chewing on before I can get the traps out.I'm not a pro, but I don't think AFCIs are required for bathroom circuits. Why would you want to do it? Those breakers are ten times the cost of regular ones. Fortunately, when I built my house three years ago I only had to have them for the bedroom circuits.