I had head aches from the beginning, and after 4 or so months, muscle aches and irritability (among other symptoms). I had it out end of August and most symptoms have gone away for now, hopefully for good, except I still feel a little more tired than usual (could be lots of other causes) and I occasionally feel like I have Arthritis in my hands (I'm 36). Good luck with your decision, and don't let anyone make you feel like it's a drastic measure (like some told me) to get it out.