Teething question — how long does it take once you can feel something?

I just felt my 5.5 month baby's gums and I can feel something sharp just under the gums where her lower incisors will be. How long did it take for your baby's teeth to errupt once they could be felt? She won't let me look at her gums, so I'm not sure if there's anything visible yet. It definitely feels different though and she's recently upped her chewing game by ferociously attacking her chewing toys and also my face. She's also miserable...we've been told that she's teething for months, but something feels different now 🤞