Hi Sherry and Deb,
First of Deb, good luck with the healing! It took my mother a while to adjust to her bridge. At least it's "only" the gums, and not one of the bridge abutment teeth that is giving you trouble, so it will get better sooner or later

I might postpone my second root canal as well (my appointment is on Wed) until I finally have the other side of my mouth finished (still about a month and a half away), 'cause I want to be able to chew... Nothing worse than a summer on a liquid diet. And that tooth is bothering me only a little these days (probably it will get worse the moment I cancel the appointment). Don't we all know that feeling.
Sherry, I had my first root canal 3 months ago. Got worse after - sensitivity to touch and general soreness on that side of my face. Very unusual (supposedly), since I did not have an abscess. In my case, the sensitivity to touch finally went away a week and a half ago, after the endo replaced the root filling by medication. x rays are fine. Soreness/pain remains. I can't tell whether the pain comes from my upper or lower jaw. It depends. I am worried it may be another tooth. Is your pain localized to the jaw in which you had the root canal?
At any rate, did you have an abscess (something visible on the x-ray) when you got the RC? Did it smell bad when they opened the tooth? In those cases, I think it's normal if the tooth takes quite a while to heal. Unfortunately I didn't have any of that, so my pain after 3 months is a mystery. I just hope it's not another tooth!!! (Although I guess that would mean that at least I wouldn't lose my root canaled one).
Best wishes to both of you. I feel very lucky to have people like you to share tooth stories with - my husband is sure sick of it.