I'm no doctor, but I know from experience that cutting oneself off from a drug/medication that you have taken for an extended period of time can give you some pretty funky feelings. I find myself grinding my teeth, or I feel a pressure in my head and even worse, the dreaded, "shocks".
However, I will also tell you that surfing the web and looking through possible ailments can actually be even more detrimental (I know many a person who has called me up freaking out because a simple headache "could" be nan aneurysm). Book an appointment with your doctor, and tell the truth. Sure, the doc might look at you differently, but you'll never know until you try it.