Is there a possibility I have septicemia caused by broken tooth? Please help someone?

I pretty much broke a filling from my tooth like 3 weeks ago. Since then my mouth has been aching and the nerve is exposed so it's sore constantly. I don't know for sure if it's abscessed.

Over the past few days however I've had a severe lack of energy and been feeling nauseous, lethargic and my muscles have been aching. My heartbeats been a little faster than usual too.

I'm pretty much terrified that I've developed the beginnings of septicemia and that the infection has traveled into my bloodstream. I'm terrified that something happens to me.
Is there a possibility I have septicemia caused by broken tooth? Please help someone?
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