I have an 06 sedan, my wife has been driving my subie all winter, I recently drove it and notice a clicking noise coming from the shift lever when I come to a stop. I can also feel the click, is this anything to be alarmed of, I never noticed it before.

Also, on start-up, on occasions (not all the time), it'll sound like the exhaust has fallen off. after a few minutes its back to normal. Should I be worried about this?

One more issue, at about 1250-1750 RPM (while driving in any gear) there is clicking sound that seems to be RPM related. Could it be related to either of the above 'issues' or is it a totally different issue?