I'm coming up to 40 days smokefree and it's going well. This last week I've had a lot of gum and jaw pain. I thought it might be an infection (and no, I haven't been to the dentist yet because every time I've been recently he takes another tooth away!)
Googling yesterday I found that my symptoms could be caused by teeth clenching which I have been aware I'm doing a lot. It could also be caused or aggravated by my constant nicotine gum chewing. Anyway I'm consciously trying to relax my jaw (easier said than done) and I'm cutting back on the gum.