ROOT CANAL CONCERN...Should I be?

I have posted a few questions regarding my previous root canal so if your back here again, thank you for your help, I am unable to get to a endodontist at this time and I need the help. I'm going ot be specific and as short as possible. I had a root canal in October of 06. Everything seemed to have gone well and she seemed to be very careful and thurough. As far as I know there was only 1 root. Because of tooth sensitivity and a tiny bit of what I thought was swelling, I went back to my dentist. She looked me over and assured me all was well. (highly recommended by the way). So, I tried to assure myself it was all good. The other day I decided to give myswelf the "tap" test. I tapped on my tooth with my finger nail. It was sensitive. No throbbing or pinching but like it is bruised. The tooth next to it which had a root canal over 9 years ago is also the same kind of sensitivity. IS THIS NORMAL? Some articles say yes, some professionals say no, what symptoms should I look for otherwise?

ROOT CANAL CONCERN...Should I be?
You really shouldn't be feeling anything on the tooth itself. However, you may have sensitive gums.
Reply:Yes, it sounds normal to me, although I'm not a dentist. Some people do have sensitive teeth and are supposed to use specific types of tooth paste so they have minimal pain, when brushing.
Reply:This is normal,After root canal.
Reply:Does it bother you- I mean when you're busy during the day, when you eat, does it keep you awake? If not, I would just let it go for now. If yes, then you need to go back to your dr when you can and discuss it with her.
Reply:They tell you that after a root canal your tooth isn't going to feel anything but that's not really true. When I had a cap put on my tooth years after a root canal they had to give me novocain because I could feel the drilling.
Reply:everyone is different when teeth are involved because you may have a ghost tooth that still has roots but not visible causing the pain when you tap on your tooth. Also you may have sensitivity with toothpaste you use to brush. TMJ could also play a role
Reply:sounds like an infection in the jaw or roots of the tooth or the area where they killed the roots of the tooth, i suggest requesting antibiotics for it and see if that kills it off and the pain with it.
Reply:DON'T LET A BIT OF DISCOMFORT AT THIS STAGE TROUBLE YOU. HAVE THE DOCTOR CHECK TO SEE IF THE BONE AROUND THIS TOOTH IS HEALTHY IN 6 MONTHS, THEN 1 YEAR. IF ALL IS OK, THEN DON'T WORRY.
Reply:Stop worrying it is very normal,I've had 5 root canals and the first one took over one year to really heal right. It was so red and very sensitive to the touch.It did heal and that was over 25 years ago.The other 4 I'm still dealing with but the gums are getting better.I hope is helps you or eases your mind a bit.