My Teeth Hurt

This has been going on for at least a year now. It freaking sucks & I am getting sick of it. My middle-upper molars hurt sooooo badly when I bite down. And, for some reason, fruit-flavored things make it worse. I just ate some cherry-flavored jello and now my teeth are killing me. Sometimes it hurts so much I get goosebumps, and I often can only chew on one side of my mouth, or, if both sides are hurting, I can only use my front teeth!

The past few weeks, I have been trying to figure out why the hell this is happening, and what can be done about it. My dentist told me it's because I have exposed dentin due to years of grinding my teeth at night. However, I've been wearing a mouth guard for 5 years, so the damage shouldn't have continued past that point - why would this pain have started only a year ago? She gave me a fluoride rinse that helps, but it makes my teeth very yellow, so I'm not a big fan.

So, I am wondering if it could be caused by a combo of exposed dentin and chronic sinusitis. I remember that, after my last sinus surgery, the sensitivity was horrible for a week. I could only chew with my front teeth. And I've read some stuff online about sinusitis causing tooth sensitivity. Also, my dentist did mention part of my grinding is likely caused by me trying to relieve the sinus pressure.

Anyway, I guess this is a just a vent post. I don't think there is much I can do other than keep using the mouthwash and deal with the vanity issues. I'm just wondering if this is another thing I can add to the list of "unexpected annoying things that CF causes."