Is my health affected by my infected tooth?

I’m young, without support from parents, and without insurance. I’ve already lost 3 back teeth due to infections. I haven’t had more than one treated by a dentist. I have another infection that’s causing my jaw to be tight and it’s started ‘popping’ … um, I was just wondering if these infections that start to flare up every month or so.. are having an effect on my overall health?