Is my crown causing my new headaches?

5 days ago I had a crown on my lower left first molar. The whole procedure took bout two hours. No temp crown. Late that day my tooth was throbbing but I assumed it was normal, however now, five days later I’m still having throbbing, sensitive to heat, sore when I chew (especially crunchy) and was feels like tension headaches that seem worse at night. I’ve never had a headache problem before. Will this go away or o I need to go back? The headaches are getting unbearable. Thank you.